返回
| 調查日期 Date of Survey |
10-11/5/93 | 17-20/5/94 | 29-31/5/95 | 22-23/5/96 | 27/5/97 | 26/5/98 | 24/5/99 | 30-31/5/00 |
| 成功樣本 Successful Sample |
573 | 504 | 504 | 521 | 531 | 553 | 528 | 1,103 |
| 回應率 Response Rate |
54.3% | 63.9% | 51.7% | 45.5% | 44.4% | 53.6% | 48.2% | 49.7% |
