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  調查日期
Date of survey
 半年結調查次數
Number of Surveys (Half-yearly) 
 半年結成功樣本
Total sample
(Half-yearly Average) 
 半年結認知率
Recognition Rate
(Half-yearly) 
  7-12/2012  1   1010   63.7% 
  1-6/2012  1   1001   66.7%