| 2001/04/26 | 第1次小泉内閣発足 |
| 2001/07/29 | 第19回参議院選挙 |
| 2001/08/13 | 小泉首相が靖国神社参拝 |
| 2001/09/11 | アメリカ同時多発テロ事件 |
| 2002/01/30 | 田中眞紀子外務大臣辞任 |
| 2002/09/17 | 小泉首相が北朝鮮を訪問し日朝首脳会談開催 |
| 2002/09/30 | 第1次小泉第1次改造内閣発足 |
| 2003/03/19 | イラク戦争開戦 |
| 2003/07/23 | 民主党、自由党が合併合意 |
| 2003/07/26 | イラク特措法成立 |
| 2003/09/22 | 第1次小泉第2次改造内閣発足 |
| 2003/09/26 | 民主党、自由党が合併 |
| 2003/10/10 | 衆議院解散 |
| 2003/11/09 | 第43回衆議院選挙 |
| 2003/11/19 | 第2次小泉内閣発足 |
| 2003/11/29 | イラク日本人外交官射殺事件 |
| 2004/01/19 | 自衛隊イラク派遣開始 |
| 2004/04/07 | イラク日本人人質事件発生 |
| 2004/04/15 | 人質解放 |
| 2004/05/22 | 小泉首相が北朝鮮を再訪問し日朝首脳会談開催 |
| 2004/07/11 | 第20回参議院選挙 |
| 2004/09/27 | 第2次小泉改造内閣発足 |
| 2004/12/09 | 自衛隊のイラク派遣延長が閣議決定 |
| 2005/08/08 | 郵政民営化法案が参議院で否決され衆議院解散 |
| 2005/09/11 | 第44回衆議院選挙 |
| 2005/09/21 | 第3次小泉内閣発足 |
| 2005/10/14 | 郵政民営化法成立 |
| 2005/10/31 | 第3次小泉改造内閣発足 |
| 2006/08/15 | 小泉首相が靖国神社参拝 |
| 2006/09/26 | 小泉首相退任 |
| 調査日付 | 支持率 | 不支率 | 自民党 | 民主党 | 無党派 | 特記事項 |
| 2001/04/27-28 | 86.3% | 6.0% | 36.2% | 10.0% | 38.2% | 緊急 |
| 2001/06/09-10 | 85.9% | 5.9% | 40.6% | 9.6% | 34.1% | 緊急 |
| 2001/08/18-19 | 79.5% | 13.4% | - | - | - | 小泉純一郎首相が13日に行った靖国神社参拝について緊急 |
| 2001/10/27-28 | 73.0% | - | 44.4% | 11.4% | - | 緊急 |
| 2002/03/02-03 | 53.5% | 36.9% | 36.5% | 11.4% | 28.3% | 緊急 |
| 2002/03/28-29 | 44.8% | 39.3% | 27.9% | 9.5% | 40.4% | 緊急 |
| 2002/05/01-02 | 43.4% | 45.1% | 29.9% | 9.2% | 38.8% | |
| 2002/06/01-02 | 42.9% | 45.1% | 33.9% | 12.2% | 35.7% | |
| 2002/06/30-07/01 | 44.1% | 42.1% | 28.3% | 11.2% | 41.9% | |
| 2002/08/03-04 | 45.2% | 40.9% | 32.6% | 13.5% | 35.3% | |
| 2002/09/05-06 | 53.9% | 30.7% | 30.0% | 12.9% | 35.1% | |
| 2002/09/18-19 | 66.6% | 22.9% | 35.0% | 8.0% | 43.3% | 緊急 |
| 2002/10/01-02 | 65.0% | 21.6% | 41.3% | 9.4% | 35.3% | |
| 2002/11/09-10 | 65.1% | 21.7% | 30.1% | 6.7% | 49.1% | |
| 2002/12/14-15 | 50.0% | 34.4% | 33.6% | 9.1% | 41.2% | |
| 2003/01/12-13 | 54.6% | 30.8% | 33.1% | 7.1% | 47.9% | |
| 2003/02/08-09 | 48.8% | 36.2% | 29.0% | 11.1% | 45.9% | |
| 2003/03/15-16 | 41.3% | 41.5% | 23.7% | 10.2% | 51.8% | |
| 2003/03/20-21 | 43.3% | 44.9% | 27.2% | 7.0% | 51.5% | イラク戦争開戦直後緊急 |
| 2003/04/11-12 | 46.3% | 43.3% | - | - | - | 緊急 |
| 2003/05/17-18 | 51.1% | 36.5% | 35.9% | 10.6% | 39.3% | |
| 2003/06/14-15 | 50.7% | 36.6% | 34.6% | 9.9% | 41.1% | |
| 2003/07/26-27 | 47.6% | 41.7% | 35.7% | 16.2% | 28.7% | |
| 2003/09/08-09 | 59.1% | 26.9% | 43.8% | 11.9% | 29.9% | 緊急 |
| 2003/09/23-24 | 66.8% | 24.3% | 39.2% | 14.1% | 31.5% | 緊急 |
| 2003/10/10-11 | 59.6% | 29.7% | 37.9% | 17.7% | 29.1% | 衆院解散を受け |
| 2003/11/15-16 | 51.6% | 37.1% | 33.8% | 24.3% | 27.8% | |
| 2003/12/03-04 | 43.8% | 44.4% | 29.4% | 22.8% | 37.9% | 日本人外交官殺害事件を受けて緊急 |
| 2004/01/17-18 | 52.5% | 39.9% | 32.1% | 20.4% | 36.4% | 陸上自衛隊の先遣隊派遣を受けて |
| 2004/02/06-07 | 48.8% | 40.8% | 34.8% | 18.9% | 34.6% | 陸上自衛隊本隊のイラクへの出発を受けて |
| 2004/03/06-07 | 51.4% | 36.7% | - | - | - | |
| 2004/04/09-10 | 48.4% | 39.3% | 36.3% | 17.8% | 37.8% | |
| 2004/04/16-17 | 55.6% | 32.5% | 35.6% | 19.2% | 35.3% | イラク人質事件での日本人3人の無事解放を受けて緊急 |
| 2004/05/15-16 | 53.8% | 35.6% | 36.0% | 13.9% | 40.0% | |
| 2004/05/23-24 | 54.9% | 31.5% | 34.3% | 14.3% | 41.5% | 緊急 |
| 2004/07/12-13 | 38.9% | 51.0% | 28.8% | 27.8% | 30.5% | 参院選を受けて緊急 |
| 2004/08/27-28 | 45.3% | 47.2% | 27.9% | 28.8% | 32.2% | |
| 2004/09/11 | 44.6% | 44.9% | 31.4% | 24.5% | 32.9% | 緊急 |
| 2004/09/27-28 | 48.6% | 36.5% | 34.6% | 25.2% | 31.3% | 緊急 |
| 2004/11/03 | 46.9% | 42.1% | 30.6% | 29.4% | 27.3% | 緊急 |
| 2004/12/09-10 | 42.0% | 48.1% | 29.6% | 20.8% | 35.1% | 緊急 |
| 2005/01/22-23 | 44.7% | 44.5% | 31.0% | 22.7% | 34.2% | |
| 2005/03/05-06 | 43.8% | 43.0% | 31.1% | 24.7% | 35.7% | |
| 2005/04/25-26 | 46.5% | 38.3% | 33.0% | 17.3% | 40.8% | |
| 2005/05/27-28 | 48.4% | 36.4% | 38.3% | 16.5% | 34.7% | 緊急 |
| 2005/06/18-19 | 46.5% | 37.7% | 34.3% | 16.4% | 38.6% | |
| 2005/07/05-06 | 42.6% | 45.5% | 37.7% | 19.9% | 33.4% | 郵政民営化関連法案の衆院通過を受け緊急 |
| 2005/08/08-09 | 47.3% | 39.4% | 44.2% | 20.2% | 26.6% | 郵政民営化関連法案の参院否決と衆院解散を受け緊急 |
| 2005/09/12-13 | 59.1% | 33.2% | 45.9% | 20.7% | 19.8% | 緊急 |
| 2005/10/17-18 | 54.5% | 36.3% | 40.4% | 18.4% | 29.8% | 小泉純一郎首相の靖国神社参拝について緊急 |
| 2005/10/31-11/01 | 60.1% | 28.7% | 47.8% | 20.0% | 20.3% | 緊急 |
| 2005/12/03-04 | 57.1% | 33.2% | 44.1% | 14.2% | 30.5% | |
| 2006/01/26-27 | 52.9% | 34.3% | 39.1% | 17.0% | 29.9% | ライブドア前社長の堀江貴文容疑者逮捕を受けて緊急 |
| 2006/02/25-26 | 51.8% | 37.2% | 46.3% | 11.3% | 31.5% | 緊急 |
| 2006/03/25-26 | 50.4% | 41.0% | 40.9% | 14.6% | 33.5% | |
| 2006/04/01-02 | 54.5% | 34.6% | 43.3% | 16.9% | 26.5% | 民主党の前原誠司代表ら執行部が「送金指示」メール問題で総退陣を表明したことを受け緊急 |
| 2006/04/07-08 | 47.2% | 39.9% | 43.4% | 19.9% | 27.3% | 民主党の小沢一郎代表選出を受け緊急 |
| 2006/05/13-14 | 49.6% | 37.6% | 39.0% | 24.2% | 27.2% | |
| 2006/06/17-18 | 48.2% | 41.6% | 44.3% | 20.4% | 26.3% | |
| 2006/07/07-08 | 46.8% | 41.8% | 42.7% | 19.4% | 26.3% | 北朝鮮のミサイル発射を受け緊急 |
| 2006/08/15-16 | 49.2% | 39.5% | 41.6% | 22.8% | 25.2% | 小泉純一郎首相が終戦記念日の15日に靖国神社を参拝したことを受け緊急 |
| 調査日付 | 支持率 | 不支率 | 自民党 | 民主党 | 無党派 | 特記事項 |
| 2001/05/19-20 | 85.4% | 8.8% | 44.4% | 9.9% | 28.0% | |
| 2001/06/30-07/01 | 88.0% | 7.3% | 51.0% | 8.3% | 25.1% | |
| 2001/09/29-30 | 82.8% | 12.5% | 49.9% | 10.4% | 23.4% | |
| 2001/12/01-02 | 79.5% | 15.2% | 46.0% | 8.8% | 28.4% | |
| 2002/02/02-03 | 58.0% | 37.0% | 39.9% | 10.0% | 32.5% | |
| 2002/03/16-17 | 54.8% | 40.0% | 37.5% | 13.2% | 30.9% |
| 調査日付 | 支持率 | 不支率 | 自民党 | 民主党 | 無党派 | 特記事項 |
| 2001/05/10-13 | 72.8% | 6.5% | 25.5% | 4.2% | 58.4% | |
| 2001/06/08-11 | 78.4% | 6.0% | 28.3% | 3.9% | 54.9% | |
| 2001/07/12-15 | 70.4% | 12.5% | 27.9% | 6.2% | 52.3% | |
| 2001/08/09-12 | 65.3% | 15.9% | 33.3% | 5.7% | 47.9% | |
| 2001/09/07-10 | 68.8% | 13.4% | 29.1% | 5.1% | 54.6% | |
| 2001/10/11-14 | 70.3% | 13.8% | 32.3% | 3.9% | 51.8% | |
| 2001/11/09-12 | 63.6% | 16.2% | 27.0% | 5.6% | 56.0% | |
| 2001/12/07-10 | 69.0% | 14.2% | 31.1% | 4.6% | 52.8% | |
| 2002/01/11-14 | 67.8% | 15.4% | 26.5% | 4.3% | 57.2% | |
| 2002/02/08-11 | 46.5% | 35.4% | 27.3% | 4.5% | 55.6% | |
| 2002/03/08-11 | 43.5% | 37.7% | 24.9% | 4.7% | 60.2% | |
| 2002/04/12-15 | 40.8% | 36.9% | 19.6% | 4.5% | 62.4% | |
| 2002/05/10-13 | 37.6% | 42.8% | 20.7% | 6.1% | 61.9% | |
| 2002/06/07-10 | 34.0% | 45.2% | 20.6% | 4.5% | 63.0% | |
| 2002/07/12-15 | 43.0% | 35.3% | - | - | - | |
| 2002/08/08-11 | 37.9% | 41.8% | 21.3% | 4.7% | 61.0% | |
| 2002/09/06-09 | 45.4% | 32.6% | 18.4% | 5.0% | 64.5% | |
| 2002/10/11-14 | 52.8% | 26.0% | 21.3% | 2.8% | 64.5% | |
| 2002/11/08-11 | 55.9% | 23.6% | - | 3.8% | - | |
| 2002/12/06-09 | 50.9% | 27.5% | 21.5% | 2.1% | 67.0% | |
| 2003/01/10-13 | 46.2% | 30.6% | 20.9% | 3.5% | 65.0% | |
| 2003/02/06-09 | 45.6% | 34.4% | - | - | - | |
| 2003/03/07-10 | 40.6% | 36.3% | - | - | - | |
| 2003/04/10-13 | 41.2% | 35.4% | - | - | - | |
| 2003/05/09-12 | 44.3% | 35.8% | - | - | - | |
| 2003/06/06-09 | 48.2% | 29.5% | - | - | - | |
| 2003/07/10-13 | 44.1% | 33.3% | - | 4.5% | - | |
| 2003/08/08-11 | 43.6% | 32.7% | - | 5.6% | - | |
| 2003/09/12-15 | 49.1% | 29.6% | - | 6.0% | - | |
| 2003/10/10-13 | 49.6% | 28.4% | - | 8.4% | - | |
| 2003/11/11-16 | 43.7% | 36.5% | 26.5% | 14.2% | 47.8% | |
| 2003/12/11-14 | 41.7% | 38.3% | 22.6% | 12.8% | 53.5% | |
| 2004/01/09-12 | 42.9% | 37.3% | 21.3% | 10.4% | 58.8% | |
| 2004/02/11-15 | 42.3% | 37.5% | 23.1% | 10.2% | 57.6% | |
| 2004/03/11-14 | 43.7% | 36.2% | 23.0% | 7.9% | 58.7% | |
| 2004/04/09-12 | 44.6% | 33.8% | 22.7% | 7.3% | 59.2% | |
| 2004/05/07-10 | 48.7% | 30.6% | 25.0% | 7.6% | 57.3% | |
| 2004/06/10-13 | 47.2% | 32.3% | 22.9% | 10.3% | 56.7% | |
| 2004/07/16-19 | 38.8% | 43.6% | 21.9% | 18.6% | 49.9% | |
| 2004/08/06-09 | 38.2% | 42.6% | 20.5% | 15.7% | 55.2% | |
| 2004/09/10-13 | 37.9% | 40.9% | 22.5% | 13.8% | 53.7% | |
| 2004/10/08-13 | 36.5% | 40.4% | 20.4% | 11.6% | 57.4% | |
| 2004/11/11-14 | 37.5% | 41.4% | 21.7% | 10.4% | 58.5% | |
| 2004/12/09-12 | 35.9% | 44.3% | 22.5% | 10.9% | 59.1% | |
| 2005/01/07-10 | 40.6% | 39.1% | 24.4% | 10.4% | 55.7% | |
| 2005/02/10-13 | 36.5% | 41.4% | 22.2% | 10.6% | 57.5% | |
| 2005/03/10-13 | 37.9% | 39.4% | 22.0% | 10.3% | 58.9% | |
| 2005/04/08-11 | 39.6% | 37.7% | 23.0% | 11.0% | 57.4% | |
| 2005/05/12-15 | 42.3% | 34.4% | 22.6% | 9.0% | 58.7% | |
| 2005/06/09-12 | 40.4% | 38.5% | 21.5% | 8.1% | 62.0% | |
| 2005/07/08-11 | 38.0% | 38.3% | 22.9% | 7.5% | 58.9% | |
| 2005/08/05-08 | 39.9% | 36.6% | 24.1% | 10.2% | 56.4% | |
| 2005/09/14-19 | 53.5% | 29.7% | 31.9% | 14.8% | 42.1% | |
| 2005/10/07-10 | 53.5% | 28.5% | 29.2% | 11.4% | 51.3% | |
| 2005/11/10-13 | 53.2% | 29.7% | 30.7% | 9.1% | 51.4% | |
| 2005/12/08-11 | 51.2% | 31.8% | 31.5% | 9.7% | 50.7% | |
| 2006/01/06-09 | 49.7% | 31.6% | 29.7% | 8.4% | 52.4% | |
| 2006/02/10-13 | 43.2% | 34.9% | 25.9% | 8.0% | 57.0% | |
| 2006/03/09-12 | 47.1% | 35.3% | 26.0% | 8.8% | 55.3% | |
| 2006/04/07-10 | 43.9% | 34.4% | 27.0% | 9.1% | 55.1% | |
| 2006/05/11-14 | 44.5% | 36.0% | 25.9% | 10.0% | 55.2% | |
| 2006/06/09-12 | 40.6% | 38.6% | 24.4% | 12.1% | 55.6% | |
| 2006/07/07-10 | 41.6% | 38.4% | 23.9% | 11.0% | 57.1% | |
| 2006/08/04-07 | 39.4% | 42.0% | 24.9% | 10.2% | 56.3% | |
| 2006/09/07-10 | 43.2% | 43.4% | 27.0% | 9.2% | 55.0% |
| 調査日付 | 支持率 | 不支率 | 自民党 | 民主党 | 無党派 | 特記事項 |
| 2001/04/27-28 | 78% | 8% | 32% | 7% | 46% | 小泉純一郎内閣が発足したのを受け |
| 2001/05/26-27 | 84% | 6% | 34% | 6% | 46% | |
| 2001/06/25-26 | 81% | 8% | 38% | 6% | 39% | |
| 2001/07/07-08 | 77% | 9% | 37% | 7% | 39% | 12日公示の参院選を控えた有権者の意識を探るため |
| 2001/08/01-02 | 69% | 17% | 39% | 10% | 34% | 参院選直後 |
| 2001/09/28-29 | 70% | 14% | 41% | 8% | 35% | 同時多発テロへの日本の対応について、有権者の意識を探るため |
| 2001/10/13-14 | 71% | 13% | 39% | 6% | 39% | |
| 2001/11/24-25 | 74% | 15% | 37% | 8% | 41% | |
| 2001/12/22-23 | 72% | 17% | 39% | 6% | 41% | |
| 2002/01/26-27 | 72% | 16% | 38% | 9% | 40% | |
| 2002/02/02-03 | 49% | 36% | 34% | 7% | 43% | 田中真紀子前外相の更迭、川口順子外相の就任を受けて |
| 2002/03/01-02 | 44% | 40% | 28% | 8% | 48% | |
| 2002/04/01-02 | 40% | 44% | 25% | 8% | 49% | |
| 2002/04/14-15 | 42% | 40% | 26% | 8% | 49% | 今月26日の小泉内閣発足1年を前に |
| 2002/05/18-19 | 38% | 47% | 27% | 8% | 49% | |
| 2002/06/22-23 | 37% | 46% | 28% | 8% | 49% | 小泉純一郎首相の実行力や求心力などについて |
| 2002/07/20-21 | 47% | 38% | 27% | 8% | 50% | 政府が8月5日から稼働を予定している「住民基本台帳ネットワーク」(住基ネット)について |
| 2002/08/24-25 | 43% | 42% | 29% | 8% | 47% | |
| 2002/08/31-09/01 | 51% | 32% | - | - | - | |
| 2002/09/18 | 61% | 21% | 31% | 6% | 46% | 小泉首相の訪朝を受けて緊急 |
| 2002/10/05-06 | 59% | 23% | 30% | 5% | 49% | |
| 2002/11/03-04 | 65% | 23% | 32% | 5% | 53% | |
| 2002/11/03-04 | 65% | 23% | 32% | 5% | 53% | |
| 2002/12/14-15 | 54% | 32% | 33% | 6% | 50% | |
| 2003/01/25-26 | 47% | 35% | 33% | 6% | 50% | |
| 2003/02/23-24 | 44% | 40% | 31% | 8% | 48% | |
| 2003/03/20-21 | 42% | 45% | 30% | 7% | 47% | 緊急 |
| 2003/03/29-30 | 43% | 42% | 29% | 6% | 52% | |
| 2003/04/19-20 | 45% | 38% | 30% | 6% | 51% | |
| 2003/05/24-25 | 48% | 37% | 29% | 9% | 46% | |
| 2003/06/28-29 | 47% | 34% | 31% | 7% | 48% | |
| 2003/07/20-21 | 42% | 36% | 30% | 6% | 51% | |
| 2003/07/26-27 | 42% | 37% | 28% | 10% | 45% | 民主、自由両党の合併合意を受けて緊急 第1回「連続世論調査」 |
| 2003/08/09-10 | - | - | 34% | 13% | 31% | 第2回「連続世論調査」 |
| 2003/08/23-24 | 49% | 34% | 28% | 9% | 49% | 第3回「連続世論調査」 |
| 2003/09/09-10 | - | - | 34% | 6% | 44% | 4候補が争う自民党総裁選について 第4回「連続世論調査」 |
| 2003/09/23-24 | 59% | 25% | 37% | 9% | 39% | 小泉第2次改造内閣の発足に伴い 第5回「連続世論調査」 |
| 2003/10/08-09 | - | - | 31% | 13% | 41% | 第6回「連続世論調査」 |
| 2003/10/21-22 | - | - | 29% | 14% | 43% | 第7回「連続世論調査」 |
| 2003/10/30-31 | - | - | 25% | 13% | - | 第8回「連続世論調査」 |
| 2003/11/06-07 | - | - | 30% | 18% | 38% | 第9回「連続世論調査」 |
| 2003/11/10-11 | 47% | 37% | 34% | 24% | 25% | 総選挙直後緊急 |
| 2003/12/10-11 | 41% | 41% | 31% | 24% | 30% | イラクへの自衛隊派遣に関する基本計画の閣議決定を受けて |
| 2004/01/17-18 | 43% | 38% | 32% | 20% | 35% | 陸上自衛隊の先遣隊のイラク派遣を受け |
| 2004/02/21-22 | 44% | 37% | 31% | 16% | 37% | |
| 2004/03/14-15 | 49% | 32% | 33% | 15% | 39% | |
| 2004/04/16 | 51% | 31% | 33% | 12% | 38% | イラクの武装グループによる人質事件で、日本人3人が無事解放されたのを受けて緊急 |
| 2004/04/17-18 | 50% | 31% | 33% | 15% | 39% | 小泉内閣が発足して26日で3年を迎えるのを前に |
| 2004/04/21-22 | - | - | 31% | 19% | 34% | 参院選に向け第1回連続世論調査 |
| 2004/05/12-13 | - | - | 27% | 12% | 44% | 参院選に向け第2回連続世論調査 |
| 2004/05/15-16 | 45% | 36% | 29% | 14% | 41% | 小泉首相の国民年金未加入と北朝鮮訪問が発表された直後緊急 |
| 2004/05/23 | 54% | 30% | 37% | 14% | 37% | 小泉首相の北朝鮮再訪問直後緊急 |
| 2004/05/26-27 | - | - | 33% | 12% | 40% | 参院選に向け第3回連続世論調査 |
| 2004/06/09-10 | - | - | 28% | 15% | 41% | 参院選に向け第4回連続世論調査 |
| 2004/06/19-20 | 40% | 42% | 30% | 15% | 40% | 24日の参院選公示を前に |
| 2004/06/22-23 | - | - | 27% | 18% | 43% | 参院選に向け第5回連続世論調査 |
| 2004/06/29-30 | - | - | 26% | 19% | 39% | 参院選に向け第6回連続世論調査 |
| 2004/07/06-07 | - | - | 27% | 21% | 34% | 参院選に向け第7回連続世論調査 |
| 2004/07/12-13 | 39% | 50% | 27% | 29% | 28% | 参院選の結果を受け緊急 |
| 2004/07/18-19 | 36% | 48% | 27% | 30% | 30% | |
| 2004/08/28-29 | 39% | 43% | 28% | 22% | 37% | |
| 2004/09/27-28 | 45% | 35% | 29% | 21% | 35% | 第2次小泉改造内閣の発足に伴い緊急 |
| 2004/10/23-24 | 38% | 43% | 30% | 21% | 34% | |
| 2004/11/27-28 | 39% | 43% | 27% | 17% | 41% | |
| 2004/12/18-19 | 37% | 47% | 28% | 19% | 41% | |
| 2005/01/29-30 | 33% | 46% | 29% | 19% | 38% | |
| 2005/02/19-20 | 41% | 41% | 32% | 16% | 41% | |
| 2005/03/12-13 | 40% | 40% | 29% | 16% | 40% | |
| 2005/04/16-17 | 42% | 38% | 32% | 15% | 41% | |
| 2005/04/24 | 43% | 36% | 27% | 16% | 41% | 中国での反日感情の高まりを受けて日中首脳会談が開かれた直後緊急 |
| 2005/05/28-29 | 45% | 35% | 31% | 14% | 42% | |
| 2005/06/25-26 | 43% | 39% | 30% | 13% | 43% | |
| 2005/07/23-24 | 41% | 42% | 33% | 15% | 39% | |
| 2005/08/08-09 | 46% | 38% | 33% | 19% | 33% | 郵政民営化法案が参院本会議で否決され、小泉首相が衆院の解散・総選挙に踏み切った直後緊急 |
| 2005/08/15-16 | 51% | 34% | 39% | 14% | 34% | |
| 2005/08/15-17 | - | - | 35% | 14% | 34% | 第1回連続世論調査 |
| 2005/08/18-19 | - | - | 33% | 14% | 38% | 第2回連続世論調査 |
| 2005/08/22-23 | - | - | 32% | 11% | 39% | 第3回連続世論調査 |
| 2005/08/25-26 | - | - | 31% | 14% | 34% | 第4回連続世論調査 |
| 2005/08/29-30 | - | - | 34% | 13% | 35% | 第5回連続世論調査 |
| 2005/09/01-02 | - | - | 28% | 14% | 33% | 第6回連続世論調査 |
| 2005/09/05-06 | - | - | 32% | 14% | 33% | 第7回連続世論調査 |
| 2005/09/08-09 | - | - | 36% | 16% | 28% | 第8回連続世論調査 |
| 2005/09/12-13 | 55% | 30% | 43% | 19% | 23% | 総選挙の結果を受け緊急 |
| 2005/10/17-18 | 55% | 30% | 42% | 16% | 30% | 小泉首相が靖国神社を参拝した直後緊急 |
| 2005/10/22-23 | 50% | 33% | 39% | 18% | 27% | |
| 2005/10/31-11/01 | 55% | 29% | 40% | 17% | 29% | 第3次小泉改造内閣の発足をうけ緊急 |
| 2005/11/26-27 | 53% | 32% | 40% | 16% | 31% | |
| 2005/12/17-18 | 50% | 33% | 41% | 13% | 33% | |
| 2006/01/28-29 | 45% | 37% | 36% | 16% | 34% | |
| 2006/02/18-19 | 43% | 41% | 36% | 14% | 38% | |
| 2006/03/18-19 | 46% | 38% | 39% | 13% | 36% | |
| 2006/04/22-23 | 50% | 36% | 38% | 17% | 34% | |
| 2006/05/20-21 | 45% | 39% | 34% | 19% | 37% | |
| 2006/06/24-25 | 45% | 41% | 35% | 20% | 33% | |
| 2006/07/22-23 | 43% | 40% | 36% | 16% | 35% | |
| 2006/08/21-22 | 44% | 40% | 39% | 14% | 34% | 麻生外相が自民党総裁選への立候補を正式に表明し、安倍官房長官、谷垣財務相の3人で争う構図が固まったことを受け緊急 |
| 2006/08/26-27 | 47% | 36% | 38% | 13% | 37% | |
| 2006/09/08-09 | - | - | 40% | 14% | 36% | 自民党総裁選の告示を受け緊急 |
| 2006/09/20-21 | - | - | 38% | 14% | 35% | 緊急 |
| 調査日付 | 支持率 | 不支率 | 自民党 | 民主党 | 無党派 | 特記事項 |
| 2001/04/27-28 | 87.1% | 6.1% | 37.8% | 9.9% | 40.1% | 小泉内閣の発足を受けて緊急 |
| 2001/09/24-25 | 77.8% | 11.3% | 34.8% | 6.7% | 46.5% | 米国同時多発テロ事件に関する臨時 |
| 2002/01/31-02/01 | 46.9% | 41.6% | 28.7% | 5.7% | 54.2% | 小泉首相が田中真紀子・前外相を更迭したことを受けて緊急 |
| 2002/09/18-19 | 64.3% | 18.7% | 28.8% | 3.2% | 57.1% | 日朝首脳会談を受けて緊急 |
| 2002/10/01-02 | 59.6% | 17.8% | 32.7% | 6.0% | 47.8% | 小泉改造内閣の発足を受け緊急 |
| 2003/04/18-20 | 43.9% | 40.8% | 25.2% | 6.6% | 57.7% | 臨時 |
| 2003/09/22-23 | 63.4% | 19.0% | - | - | - | 緊急 |
| 2003/11/10-11 | 47.3% | 37.2% | 35.6% | 23.7% | 29.4% | 衆院選の結果を受けて緊急 |
| 2004/05/22-23 | 54.5% | 34.1% | - | - | - | 22日の日朝首脳会談を受け緊急 |
| 2004/06/11-13 | 45.3% | 37.2% | 31.8% | 18.4% | 35.1% | |
| 2004/06/25-27 | 40.7% | 43.5% | 31.8% | 19.9% | 35.8% | 参院選公示直後臨時 |
| 2004/07/12-13 | 41.4% | 46.9% | 28.7% | 30.2% | 28.7% | 今回の参院選の結果を受けて緊急 |
| 2004/09/27-28 | 41.9% | 31.8% | 32.1% | 22.5% | 34.9% | 第2次小泉改造内閣の発足を受けて緊急 |
| 2005/08/08-09 | 47.7% | 42.3% | 40.1% | 18.3% | 30.3% | 衆院解散直後緊急 |
| 2005/08/17-19 | 53.2% | 34.1% | 43.6% | 15.5% | 28.0% | 衆院選に関する継続世論調査 |
| 2005/08/24-26 | 53.1% | 34.5% | 44.0% | 17.1% | 25.7% | 衆院選に関する継続世論調査 |
| 2005/08/31-09/02 | 50.8% | 36.7% | 42.2% | 18.5% | 25.3% | 衆院選に関する継続世論調査 |
| 2005/09/06-08 | 52.6% | 34.7% | 44.1% | 18.0% | 24.2% | 衆院選に関する継続世論調査 |
| 2005/09/12-13 | 61.0% | 32.5% | 48.2% | 19.0% | 19.2% | 先の衆院選の結果を受けて緊急 |
| 2005/10/31-11/01 | 62.5% | 20.4% | 45.4% | 14.2% | 29.2% | 第3次小泉改造内閣の発足を受け緊急 |
| 2006/01/27-29 | 52.0% | 36.1% | 38.9% | 17.2% | 34.6% | ライブドアの証券取引法違反事件を受け緊急 |
| 2006/03/01-02 | 54.8% | 35.0% | 42.9% | 15.1% | 31.4% | 民主党が取り上げた「送金指示メール」問題を受け緊急 |
| 2006/04/01-02 | 56.8% | 34.3% | 44.0% | 12.4% | 34.6% | 民主党の前原代表が「偽メール」問題で引責辞任を表明したのを受け緊急 |
| 2006/07/06-07 | 48.5% | 39.9% | - | - | - | 北朝鮮がミサイルを相次いで発射したことを受け緊急 |
| 2006/08/15-16 | 52.3% | 37.4% | 40.3% | 16.4% | 35.0% | 小泉首相が終戦記念日(8月15日)に靖国神社を参拝したことを受け緊急 |
| 調査日付 | 支持率 | 不支率 | 自民党 | 民主党 | 無党派 | 特記事項 |
| 2001/05/26-27 | 85.5% | 5.7% | 37.0% | 5.1% | 49.2% | |
| 2001/06/30-07/01 | 84.5% | 7.2% | 43.0% | 7.0% | 40.2% | |
| 2001/08/04-05 | 77.7% | 13.8% | 42.5% | 8.0% | 36.0% | |
| 2001/09/15-16 | 78.6% | 12.0% | 41.9% | 6.1% | 41.0% | |
| 2001/10/20-21 | 77.4% | 14.0% | 42.6% | 5.7% | 40.7% | |
| 2001/11/17-18 | 76.2% | 15.4% | 40.5% | 7.1% | 40.9% | |
| 2001/12/15-16 | 76.3% | 15.1% | 39.9% | 7.1% | 42.6% | |
| 2002/01/19-20 | 77.6% | 14.0% | 39.0% | 6.1% | 45.0% | |
| 2002/02/23-24 | 53.0% | 36.1% | 33.2% | 7.0% | 48.7% | |
| 2002/03/23-24 | 50.6% | 40.2% | 31.0% | 7.3% | 50.7% | |
| 2002/04/20-21 | 47.9% | 40.9% | 30.5% | 6.8% | 51.9% | |
| 2002/05/25-26 | 41.8% | 47.7% | 31.1% | 6.9% | 49.9% | |
| 2002/06/22-23 | 42.2% | 46.6% | 29.7% | 6.6% | 52.3% | |
| 2002/07/20-21 | 50.7% | 38.5% | 31.2% | 7.7% | 49.6% | |
| 2002/08/24-25 | 45.7% | 41.4% | 29.9% | 6.1% | 54.5% | |
| 2002/09/21-22 | 66.1% | 24.4% | 34.9% | 5.9% | 50.2% | |
| 2002/10/26-27 | 65.9% | 23.9% | 34.6% | 4.1% | 53.1% | |
| 2002/11/23-24 | 60.3% | 27.9% | 33.9% | 5.5% | 52.3% | |
| 2002/12/21-22 | 54.7% | 34.2% | 34.3% | 3.8% | 51.7% | |
| 2003/01/25-26 | 53.0% | 35.9% | 33.2% | 5.8% | 51.4% | |
| 2003/02/22-23 | 49.1% | 39.6% | 30.7% | 6.4% | 52.5% | |
| 2003/03/22-23 | 49.0% | 39.6% | 33.5% | 5.6% | 49.7% | |
| 2003/05/10-11 | 51.3% | 38.2% | 32.9% | 6.2% | 49.3% | |
| 2003/06/14-15 | 53.4% | 35.5% | 34.7% | 6.9% | 48.5% | |
| 2003/07/12-13 | 52.2% | 36.8% | 35.2% | 7.3% | 47.8% | |
| 2003/08/30-31 | 57.7% | 31.2% | 35.7% | 7.0% | 48.6% | |
| 2003/09/27-28 | 65.0% | 25.7% | 39.2% | 8.5% | 44.6% | |
| 2003/10/18-19 | 59.6% | 29.5% | 39.0% | 9.2% | 42.9% | |
| 2003/11/15-16 | 54.1% | 36.7% | 36.1% | 20.9% | 34.1% | |
| 2003/12/13-14 | 46.5% | 43.1% | 32.8% | 17.6% | 40.7% | |
| 2004/01/24-25 | 53.3% | 36.9% | 34.4% | 15.0% | 41.9% | |
| 2004/02/21-22 | 51.5% | 38.3% | 34.7% | 15.3% | 42.1% | 北朝鮮の核問題をめぐって、25日から北京で開かれる6か国協議を前に |
| 2004/03/20-21 | 52.3% | 37.7% | 34.9% | 14.2% | 42.6% | |
| 2004/04/17-18 | 59.2% | 31.7% | 36.3% | 12.1% | 43.8% | |
| 2004/05/22-23 | 59.0% | 31.3% | 37.3% | 11.6% | 43.3% | |
| 2004/06/12-13 | 54.7% | 34.7% | 36.7% | 11.2% | 43.3% | |
| 2004/07/17-18 | 43.3% | 46.3% | 30.5% | 25.0% | 35.4% | |
| 2004/09/11-12 | 48.4% | 40.3% | 34.4% | 19.3% | 38.2% | |
| 2004/10/09-11 | 46.5% | 44.0% | 32.8% | 17.8% | 41.4% | |
| 2004/11/13-14 | 50.0% | 38.8% | 33.5% | 15.1% | 44.0% | |
| 2004/12/11-12 | 45.0% | 43.4% | 34.9% | 14.0% | 43.8% | |
| 2005/01/15-16 | 48.0% | 40.7% | 34.0% | 14.5% | 44.0% | |
| 2005/02/12-13 | 47.7% | 40.7% | 36.9% | 13.6% | 43.1% | |
| 2005/03/12-13 | 49.4% | 40.9% | 35.4% | 12.8% | 44.7% | |
| 2005/04/09-10 | 47.8% | 38.7% | 34.9% | 12.7% | 45.4% | |
| 2005/05/14-15 | 51.4% | 37.0% | 36.1% | 11.8% | 45.8% | |
| 2005/06/11-12 | 47.0% | 40.0% | 33.8% | 9.4% | 50.5% | |
| 2005/07/09-10 | 45.7% | 43.2% | 33.4% | 11.9% | 47.6% | |
| 2005/08/06-07 | 47.7% | 40.8% | 34.1% | 11.6% | 47.3% | 小泉首相が衆院を解散する前 |
| 2005/09/17-18 | 62.0% | 29.9% | 43.7% | 14.9% | 32.7% | |
| 2005/10/15-16 | 59.4% | 32.4% | 42.0% | 13.4% | 36.6% | |
| 2005/11/12-13 | 61.0% | 30.4% | 41.6% | 11.9% | 38.7% | |
| 2005/12/10-11 | 57.5% | 33.7% | 39.7% | 13.0% | 40.1% | |
| 2006/01/21-22 | 56.1% | 35.8% | 40.9% | 12.6% | 38.1% | |
| 2006/02/11-12 | 53.5% | 36.2% | 39.3% | 13.3% | 40.2% | |
| 2006/03/11-12 | 54.9% | 35.9% | 42.3% | 11.1% | 39.2% | |
| 2006/04/08-09 | 56.0% | 35.5% | 42.8% | 14.0% | 36.9% | |
| 2006/05/13-14 | 54.4% | 35.4% | 42.3% | 15.8% | 34.5% | |
| 2006/06/17-18 | 52.0% | 38.7% | 40.5% | 14.8% | 37.4% | |
| 2006/07/08-09 | 50.2% | 39.7% | 38.6% | 14.6% | 39.6% | |
| 2006/08/05-06 | 51.1% | 39.2% | 40.6% | 13.6% | 38.7% | |
| 2006/09/09-10 | 53.0% | 36.5% | 42.4% | 14.5% | 36.1% |
| 調査日付 | 支持率 | 不支率 | 自民党 | 民主党 | 無党派 | 特記事項 |
| 2001/04/27-28 | 85% | 5% | 33% | 10% | 37% | 小泉内閣発足直後 |
| 2001/05/25-26 | 87% | 4% | 29% | 9% | 42% | 発足から1カ月を経過した小泉内閣について |
| 2001/06/29-30 | 84% | 9% | 36% | 10% | 36% | 参院選(7月29日投開票)1カ月前の情勢を探るため |
| 2001/08/18 | 81% | 11% | 39% | 12% | 30% | |
| 2001/09/24 | 81% | 11% | 38% | 9% | 37% | |
| 2001/10/14 | 81% | 11% | 36% | 11% | 36% | |
| 2001/11/17 | 75% | 13% | 36% | 9% | 38% | |
| 2001/12/08-09 | 62% | 20% | 35% | 6% | 46% | 電話帳から無作為に抽出した人を対象 |
| 2002/01/19-20 | 77% | 12% | 33% | 8% | 44% | |
| 2002/02/02-03 | 53% | 34% | 31% | 8% | 44% | |
| 2002/03/02-03 | 49% | 35% | 30% | 9% | 39% | |
| 2002/03/30-31 | 46% | 38% | 25% | 7% | 47% | |
| 2002/04/20-21 | 42% | 39% | 26% | 9% | 46% | |
| 2002/06/01-02 | 40% | 40% | 27% | 10% | 44% | |
| 2002/07/06-07 | 44% | 36% | 27% | 9% | 41% | |
| 2002/08/24-25 | 43% | 34% | 29% | 9% | 44% | |
| 2002/09/21-22 | 67% | 19% | 31% | 10% | 44% | 小泉純一郎首相の朝鮮民主主義人民共和国(北朝鮮)訪問に関して |
| 2002/10/05-06 | 64% | 21% | 31% | 7% | 46% | |
| 2002/12/14-15 | 49% | 28% | 31% | 6% | 49% | |
| 2003/01/25-26 | 53% | 30% | 30% | 7% | 51% | |
| 2003/03/01-02 | 45% | 36% | 27% | 8% | 50% | |
| 2003/03/20-21 | 43% | 39% | 27% | 8% | 49% | 米英によるイラク攻撃直後 |
| 2003/04/19-20 | 48% | 31% | 27% | 8% | 50% | イラク戦争開戦1カ月を節目に |
| 2003/05/31-06/01 | 49% | 26% | 29% | 6% | 47% | |
| 2003/07/05-06 | 49% | 31% | 32% | 8% | 45% | |
| 2003/08/30-31 | 54% | 24% | 34% | 8% | 40% | |
| 2003/09/22-23 | 65% | 22% | 38% | 13% | 36% | 自民党総裁選での小泉純一郎首相の再選、内閣改造を受けて緊急 |
| 2003/10/11-12 | 56% | 26% | 36% | 16% | 33% | |
| 2003/11/29-30 | 42% | 37% | 29% | 27% | 32% | |
| 2003/12/20-21 | 48% | 35% | 31% | 21% | 36% | |
| 2004/01/24-25 | 49% | 37% | 32% | 20% | 33% | |
| 2004/03/06-07 | 50% | 29% | 36% | 14% | 37% | |
| 2004/04/17-18 | 51% | 31% | 30% | 15% | 40% | |
| 2004/05/15-16 | 47% | 32% | 26% | 13% | 44% | |
| 2004/05/23 | 58% | 29% | 32% | 14% | 41% | 小泉純一郎首相の北朝鮮訪問を受け緊急 |
| 2004/06/12-13 | 46% | 35% | 32% | 16% | 38% | |
| 2004/07/17-18 | 40% | 44% | 30% | 24% | 30% | 参院選の結果を受け |
| 2004/10/02-03 | 46% | 38% | 34% | 20% | 34% | 小泉純一郎首相の内閣改造を受け |
| 2004/11/06-07 | 45% | 36% | 26% | 18% | 35% | |
| 2004/12/10-11 | 37% | 45% | 29% | 19% | 40% | 自衛隊のイラク派遣延長が9日に閣議決定されたのを受け緊急 |
| 2005/02/11-12 | 41% | 39% | 31% | 20% | 36% | |
| 2005/03/26-27 | 43% | 33% | 33% | 17% | 37% | |
| 2005/04/16-17 | 42% | 35% | 25% | 15% | 50% | |
| 2005/06/18-19 | 41% | 38% | 27% | 17% | 43% | |
| 2005/07/16-17 | 37% | 40% | 26% | 18% | 44% | |
| 2005/08/08-09 | 46% | 37% | 32% | 15% | 39% | 小泉純一郎首相が衆院解散に踏み切ったことを受け緊急 |
| 2005/08/13-14 | 51% | 33% | 30% | 19% | 36% | 戦後60年の終戦記念日を前に |
| 2005/09/07-08 | 51% | 36% | 38% | 22% | 25% | 衆院選の投開票日(11日)を直前に控え緊急 |
| 2005/10/08-09 | 56% | 30% | 37% | 17% | 34% | |
| 2005/10/31-11/01 | 56% | 31% | 35% | 20% | 31% | 第3次小泉改造内閣の発足を受け緊急 |
| 2006/01/21-22 | 52% | 35% | 28% | 17% | 41% | |
| 2006/02/10-11 | 48% | 40% | 31% | 20% | 36% | |
| 2006/04/01-02 | 48% | 36% | 33% | 12% | 43% | |
| 2006/05/13-14 | 50% | 36% | 31% | 20% | 35% | |
| 2006/06/17-18 | 41% | 38% | 28% | 21% | 38% | |
| 2006/07/22-23 | 44% | 40% | 31% | 19% | 38% | |
| 2006/08/15-16 | 45% | 37% | 32% | 17% | 37% | 小泉純一郎首相が終戦記念日の15日に靖国神社を参拝したことを受け緊急 |
| 調査日付 | 支持率 | 不支率 | 自民党 | 民主党 | 無党派 | 特記事項 |
| 2001/04/26-29 | 80% | 8% | 41% | 15% | 21% | 26日に発足した小泉純一郎新政権の評価などを探るため |
| 2001/06/08-10 | 85% | 6% | 47% | 12% | 18% | |
| 2001/09/21-23 | 79% | 12% | 50% | 12% | 16% | |
| 2001/11/23-25 | 78% | 14% | 49% | 14% | 16% | |
| 2002/02/09-11 | 55% | 34% | 48% | 14% | 17% | |
| 2002/03/22-24 | 48% | 39% | 41% | 14% | 18% | |
| 2002/05/31-06/02 | 43% | 46% | 38% | 16% | 21% | |
| 2002/08/02-04 | 44% | 38% | 38% | 15% | 21% | 有権者の標本抽出方法を以前の電話帳方式から乱数番号方式(RDD方式)に変えた |
| 2002/10/01-02 | 61% | 20% | 45% | 10% | 25% | 内閣改造直後 |
| 2002/12/13-15 | 51% | 31% | 42% | 10% | 28% | |
| 2003/02/07-09 | 46% | 35% | 41% | 14% | 23% | |
| 2003/03/20-21 | 42% | 41% | 42% | 14% | 23% | 米英軍によるイラク攻撃を受けて緊急 |
| 2003/05/15-18 | 48% | 35% | 41% | 13% | 27% | |
| 2003/06/19-22 | 49% | 38% | 39% | 14% | 23% | |
| 2003/07/31-08/03 | 45% | 35% | 36% | 15% | 26% | |
| 2003/09/22-23 | 65% | 22% | 50% | 15% | 19% | |
| 2003/12/18-21 | 43% | 41% | 38% | 28% | 17% | |
| 2004/02/12-15 | 48% | 36% | 41% | 24% | 18% | |
| 2004/04/01-04 | 48% | 35% | 40% | 24% | 21% | |
| 2004/05/23-24 | 56% | 30% | 43% | 22% | 20% | |
| 2004/09/02-05 | 42% | 40% | 34% | 31% | 18% | |
| 2004/09/27-28 | 44% | 39% | 39% | 28% | 17% | |
| 2004/11/21-24 | 44% | 40% | 40% | 27% | 19% | |
| 2004/12/24-27 | 41% | 45% | 36% | 27% | 22% | |
| 2005/02/10-13 | 44% | 41% | 38% | 24% | 20% | |
| 2005/04/07-10 | 44% | 41% | 37% | 22% | 20% | |
| 2005/06/16-19 | 48% | 39% | 40% | 20% | 23% | |
| 2005/07/07-09 | 43% | 43% | 38% | 24% | 18% | 郵政民営化法案の衆院通過を受け緊急 |
| 2005/08/09-10 | 47% | 37% | 45% | 20% | 20% | 郵政法案否決と衆院解散を受け緊急 |
| 2005/08/20-22 | 49% | 39% | 46% | 19% | 17% | |
| 2005/10/31-11/01 | 56% | 30% | 48% | 23% | 13% | 第3次小泉改造内閣の発足を受け緊急 |
| 2005/12/23-25 | 59% | 34% | 44% | 22% | 18% | |
| 2006/02/02-05 | 45% | 43% | 44% | 22% | 18% | |
| 2006/03/24-26 | 48% | 40% | 44% | 19% | 21% | |
| 2006/05/12-14 | 49% | 39% | 44% | 24% | 18% | |
| 2006/06/16-18 | 47% | 41% | 42% | 25% | 18% | |
| 2006/07/21-23 | 46% | 44% | 43% | 24% | 20% | |
| 2006/08/18-20 | 50% | 40% | 44% | 23% | 18% |
| 調査日付 | 支持率 | 不支率 | 自民党 | 民主党 | 無党派 | 特記事項 |
| 2001/05/04-06 | 81% | 6% | 30.4% | 5.6% | 54.1% | |
| 2001/06/08-10 | 85% | 5% | 31.1% | 5.1% | 53.7% | |
| 2001/07/06-08 | 77% | 9% | 39.8% | 7.0% | 35.3% | 第19回参院選第1回全国電話調査 |
| 2001/08/03-05 | 72% | 15% | 35.7% | 7.6% | 44.2% | |
| 2001/09/07-09 | 74% | 12% | 31.6% | 6.5% | 48.9% | |
| 2001/10/06-08 | 75% | 14% | 32.5% | 5.0% | 51.7% | |
| 2001/11/09-11 | 71% | 18% | 31.8% | 5.2% | 52.5% | |
| 2001/12/07-09 | 77% | 14% | 35.2% | 4.2% | 52.3% | |
| 2002/01/12-14 | 79% | 11% | 33.7% | 4.9% | 51.5% | |
| 2002/02/09-11 | 53% | 39% | 28.1% | 4.8% | 59.0% | |
| 2002/03/08-10 | 51% | 40% | 28.5% | 5.1% | 56.7% | |
| 2002/04/05-07 | 45% | 42% | 24.9% | 4.8% | 58.0% | |
| 2002/05/10-12 | 43% | 45% | 26.1% | 6.6% | 54.8% | |
| 2002/06/07-09 | 39% | 52% | 24.7% | 5.2% | 59.9% | |
| 2002/07/05-07 | 42% | 48% | 26.0% | 5.6% | 58.4% | |
| 2002/08/09-11 | 45% | 42% | 27.5% | 4.8% | 57.1% | |
| 2002/09/06-08 | 55% | 33% | 24.6% | 5.1% | 60.6% | |
| 2002/10/12-14 | 64% | 27% | 28.1% | 4.6% | 58.1% | |
| 2002/11/08-10 | 68% | 22% | 29.2% | 2.9% | 58.5% | |
| 2002/12/06-08 | 61% | 28% | 28.4% | 4.9% | 56.2% | |
| 2003/01/11-13 | 59% | 31% | 28.6% | 5.2% | 56.4% | |
| 2003/02/07-09 | 52% | 39% | 27.3% | 6.2% | 59.0% | |
| 2003/03/07-09 | 45% | 46% | 28.0% | 5.7% | 56.4% | |
| 2003/04/11-13 | 53% | 36% | 31.0% | 6.5% | 53.0% | |
| 2003/05/09-11 | 54% | 35% | 27.0% | 6.5% | 57.3% | |
| 2003/06/06-08 | 59% | 32% | 28.4% | 5.3% | 58.8% | |
| 2003/07/11-13 | 55% | 35% | 30.6% | 6.4% | 55.6% | |
| 2003/08/08-10 | 53% | 34% | 30.6% | 6.1% | 54.8% | |
| 2003/09/05-07 | 61% | 28% | 32.2% | 9.2% | 49.1% | |
| 2003/10/11-13 | 62% | 28% | 35.8% | 9.9% | 48.1% | |
| 2003/11/14-16 | 56% | 36% | 32.6% | 19.9% | 38.7% | |
| 2003/12/05-07 | 46% | 44% | 31.8% | 19.8% | 42.6% | |
| 2004/01/10-12 | 54% | 35% | 30.3% | 14.3% | 46.7% | |
| 2004/02/06-08 | 49% | 42% | 31.8% | 17.3% | 44.5% | |
| 2004/03/05-07 | 54% | 37% | 31.2% | 11.7% | 48.7% | |
| 2004/04/09-11 | 53% | 34% | 33.7% | 10.8% | 48.2% | |
| 2004/05/07-09 | 53% | 37% | 33.5% | 10.0% | 48.4% | |
| 2004/06/11-13 | 54% | 37% | 33.6% | 11.6% | 48.2% | |
| 2004/07/17-19 | 43% | 45% | 33.1% | 24.8% | 26.7% | RDD追跡法に変更 |
| 2004/08/06-08 | 43% | 42% | 29.3% | 24.5% | 30.9% | |
| 2004/09/10-12 | 43% | 40% | 31.5% | 20.7% | 32.1% | |
| 2004/10/09-11 | 45% | 42% | 29.4% | 20.2% | 35.3% | |
| 2004/11/05-07 | 54% | 38% | 28.0% | 17.6% | 40.4% | |
| 2004/12/10-12 | 44% | 42% | 29.6% | 14.9% | 43.0% | |
| 2005/01/08-10 | 42% | 41% | 29.1% | 17.7% | 38.1% | |
| 2005/02/11-13 | 46% | 40% | 30.6% | 16.2% | 39.9% | |
| 2005/03/11-13 | 46% | 37% | 30.6% | 12.7% | 42.1% | |
| 2005/04/08-10 | 45% | 40% | 30.1% | 14.8% | 40.4% | |
| 2005/05/06-08 | 52% | 35% | 35.7% | 11.1% | 39.9% | |
| 2005/06/10-12 | 49% | 38% | 32.2% | 12.4% | 40.7% | |
| 2005/07/08-10 | 46% | 39% | 31.3% | 13.8% | 43.4% | |
| 2005/08/09-10 | 47% | 38% | 35.3% | 13.7% | 36.3% | |
| 2005/09/17-19 | 58% | 32% | 42.4% | 17.7% | 25.6% | |
| 2005/10/08-10 | 59% | 30% | 41.7% | 16.9% | 30.5% | |
| 2005/11/11-13 | 57% | 29% | 41.2% | 14.2% | 31.4% | |
| 2005/12/09-11 | 58% | 28% | 43.8% | 12.7% | 29.4% | |
| 2006/01/07-09 | 54% | 30% | 43.6% | 12.6% | 28.0% | |
| 2006/02/10-12 | 47% | 35% | 39.4% | 15.2% | 30.0% | |
| 2006/03/10-12 | 49% | 34% | 41.4% | 13.9% | 25.8% | |
| 2006/04/07-09 | 51% | 32% | 38.9% | 16.4% | 28.3% | |
| 2006/05/12-14 | 47% | 40% | 35.1% | 20.4% | 29.5% | |
| 2006/06/09-11 | 47% | 40% | 36.8% | 18.7% | 23.5% | |
| 2006/07/07-09 | 46% | 40% | 36.0% | 17.2% | 30.6% | |
| 2006/08/18-20 | 46% | 41% | 39.3% | 16.7% | 28.8% | |
| 2006/09/08-10 | 51% | 39% | 38.4% | 14.6% | 32.5% |
