| 調查日期 | 成功樣本 | 回應率 |
| 21-24/6/04 | 1023 | 63.9% |
| 13-16/4/04 | 1022 | 64.4% |
| 20-23/2/04 | 1045 | 65.3% |
| 20-23/12/03 | 1022 | 66.0% |
| 8-11/10/03 | 1004 | 60.8% |
| 18-20/8/03 | 1032 | 70.3% |
| 13-18/6/03 | 1043 | 68.0% |
| 16-23/4/03 | 1021 | 68.9% |
| 14-18/2/03 | 1045 | 68.3% |
| 13-18/12/02 | 1026 | 67.6% |
| 13-16/10/02 | 1028 | 63.0% |
| 14-19/8/02 | 1018 | 68.0% |
| 17-19/6/02 | 1010 | 65.4% |
| 15-17/4/02 | 1101 | 59.0% |
| 18-21/2/02 | 1071 | 65.4% |
| 17-19/12/01 | 1074 | 63.5% |
| 26-29/10/01 | 1050 | 66.4% |
| 17-24/8/01 | 1045 | 64.1% |
| 8-13/6/01 | 1074 | 72.5% |
| 27/4-11/5/01 | 1003 | 77.8% |
| 19-21/2/01 | 1049 | 44.4% |
| 18-27/12/00 | 1016 | 48.4% |
| 9-17/10/00 | 1032 | 61.0% |
| 25-30/8/00 | 1097 | 59.1% |
| 7-8/6/00 | 1074 | 49.0% |
| 6-7/4/00 | 570 | 66.2% |
| 22-23/2/00 | 508 | 58.3% |
| 13-15/12/99 | 529 | 52.2% |
| 20/10/99 | 557 | 49.0% |
| 3/8/99 | 541 | 49.5% |
| 16-19/7/99 | 553 | 52.8% |
| 8/6/99 | 538 | 51.7% |
| 15/4/99 | 527 | 43.9% |
| 8-9/2/99 | 513 | 52.2% |
| 8-9/12/98 | 530 | 47.3% |
| 12-13/10/98 | 529 | 43.9% |
| 11/8/98 | 565 | 47.1% |
| 7/6/98 | 543 | 47.2% |
| 14-15/4/98 | 522 | 42.0% |
| 10/2/98 | 535 | 48.7% |
| 8-9/12/97 | 500 | 50.1% |
| 14-15/10/97 | 517 | 46.6% |
| 9-10/9/97 | 518 | 43.0% |
| 12/8/97 | 526 | 44.8% |
| 15/7/97 | 541 | 45.8% |
| 23-24/6/97 | 538 | 39.4% |
| 22-27/4-1/5/97 | 519 | 38.4% |
| 18-19/2/97 | 534 | 45.1% |
| 16-17/12/96 | 584 | 46.2% |
| 23-24/10/96 | 526 | 46.5% |
| 28-29/8/96 | 515 | 52.7% |
| 24/6/96 | 547 | 51.6% |
| 29-30/4/96 | 537 | 46.9% |
| 25-27/3/96 | 531 | 59.1% |
| 13-15/3/96 | 613 | 54.8% |
| 28-29/12/95 | 501 | 50.9% |
| 4-5/10/95 | 518 | 57.1% |
| 31/7-1/8/95 | 602 | 55.7% |
| 5-6/6/95 | 590 | 54.2% |
| 5-10/4/95 | 550 | 52.6% |
| 27/1-3/2/95 | 517 | 51.1% |
| 7-9/12/94 | 504 | 59.2% |
| 3-4/10/94 | 516 | 52.8% |
| 1-3/8/94 | 569 | 50.2% |
| 31/5-1/6/94 | 538 | 59.2% |
| 6-7/4/94 | 509 | 60.2% |
| 1-7/2/94 | 510 | 50.2% |
| 28-30/12/93 | 600 | 55.0% |
| 26-27/10/93 | 527 | 69.6% |
| 11/8/93 | 523 | 52.9% |
| 9-10/6/93 | 509 | 52.7% |