即日調查 Instant survey |
跟進調查 Follow-up survey |
即日調查 Instant survey |
跟進調查 Follow-up survey |
即日調查 Instant survey |
跟進調查 Follow-up survey |
即日調查 Instant survey |
跟進調查 Follow-up survey |
|
調查日期 Date of Survey |
18/2/1998 | 24/2/1998 | 3/3/1999 | 18/3/1999 | 8/3/2000 | 20/3/2000 | 7-8/3/2001 | 30-31/3/2001 |
成功樣本 Successful Sample |
804 | 538 | 1190 | 530 | 856 | 660 | 502 | 511 |
回應率 Response Rate |
54.7% | 56.7% | 62.1% | 55.4% | 56.4% | 56.7% | 67.1% | 73.3% |
標準誤差 Standard Error |
1.8% | 2.2% | 1.8% | 2.2% | 1.7% | 2.0% | 2.2% | 2.2% |