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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)
1-6/05	7	7146	64.4%
7-12/04	12	12227	63.4%
1-6/04	15	15397	64.2%
7-12/03	14	14466	66.3%
1-6/03	16	16908	68.5%
7-12/02	12	12490	66.2%
1-6/02	15	15812	63.4%
7-12/01	14	14736	67.1%
1-6/01	13	12619	63.3%
7-12/00	15	14854	56.7%
1-6/00	12	8523	54.2%
7-12/99	13	7281	49.5%
1-6/99	13	6867	52.2%
7-12/98	15	8868	47.8%
1-6/98	14	7440	49.8%
7-12/97	19	11007	45.9%
1-6/97	17	9133	45.7%
7-12/96	12	7440	49.8%