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調查日期 Date of survey |
調查次數
Number of Surveys |
成功樣本 Successful Sample |
回應率
Response Rate |
1-6/2002 | 3 | 3132 | 64.1% |
7-12/2001 | 3 | 3203 | 67.7% |
1-6/2001 | 3 | 3152 | 58.8% |
7-12/2000 | 3 | 3158 | 53.7% |
1-6/2000 | 6 | 4240 | 53.9% |
7-12/1999 | 6 | 3205 | 48.2% |
1-6/1999 | 6 | 3147 | 49.9% |
7-12/1998 | 6 | 3148 | 42.9% |
1-6/1998 | 7 | 3744 | 48.4% |
7-12/1997 | 6 | 3181 | 43.4% |