| 調查月份 Month 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) |
| 7/02 - 12/02 | 6 | 6260 | 66.8% |
| 1/02 - 6/02 | 6 | 6217 | 63.5% |
| 7/01 - 12/01 | 6 | 6321 | 67.8% |
| 1/01 - 6/01 | 6 | 6348 | 63.4% |
| 7/00 - 12/00 | 6 | 6324 | 54.4% |
| 1/00 - 6/00 | 6 | 4240 | 53.9% |
| 7/99 - 12/99 | 6 | 3205 | 48.2% |
| 1/99 - 6/99 | 8 | 4213 | 50.7% |
| 7/98 - 12/98 | 9 | 4755 | 46.5% |
| 1/98 - 6/98 | 7 | 3744 | 48.4% |
| 7/97 - 12/97 | 6 | 3181 | 43.4% |