返回
| 調查年份 | 成功樣本 | 回應率 |
| 7-12/04 | 3063 | 65.8% |
| 1-6/04 | 3090 | 64.5% |
| 7-12/03 | 3058 | 65.7% |
| 1-6/03 | 3109 | 68.4% |
| 7-12/02 | 3072 | 66.2% |
| 1-6/02 | 3182 | 63.3% |
| 7-12/01 | 3169 | 64.7% |
| 1-6/01 | 3126 | 64.9% |
| 7-12/00 | 3145 | 56.2% |
| 1-6/00 | 2152 | 57.8% |
| 7-12/99 | 2515 | 51.3% |
| 1-6/99 | 1578 | 49.3% |
| 7-12/98 | 2678 | 45.0% |
| 1-6/98 | 2693 | 47.0% |
| 7-12/97 | 5797 | 44.7% |
| 1-6/97 | 8203 | 46.8% |
| 7-12/96 | 3697 | 48.4% |
| 1-6/96 | 3380 | 54.1% |
| 7-12/95 | 3395 | 56.3% |
| 1-6/95 | 3505 | 57.7% |
| 7-12/94 | 2123 | 55.5% |
| 1-6/94 | 3176 | 60.1% |