| 調查日期 Date of survey |
半年結調查次數 Number of Surveys (Half-yearly) |
半年結成功樣本 Successful Sample (Half-yearly) |
半年結回應率 Response Rate (Half-yearly Average) |
| 7-12/03 (初步數字 Preliminiary figure) | 2 | 2036 | 65.6% |
| 1-6/03 | 3 | 3109 | 68.4% |
| 7-12/02 | 3 | 3072 | 66.2% |
| 1-6/02 | 3 | 3182 | 63.3% |
| 7-12/01 | 3 | 3169 | 64.7% |
| 1-6/01 | 3 | 3126 | 64.9% |
| 7-12/00 | 3 | 3145 | 56.2% |
| 1-6/00 | 3 | 2152 | 57.8% |
| 7-12/99 | 4 | 2515 | 51.3% |
| 1-6/99 | 3 | 1578 | 49.3% |
| 7-12/98 | 5 | 2678 | 45.0% |
| 1-6/98 | 5 | 2693 | 47.0% |
| 7-12/97 | 11 | 5797 | 44.7% |