人口變項   Demographic profile of respondents

6-10/12/2010 7-11/9/2010 9-13/6/2010 9-15/3/2010 8-11/12/2009 7-13/9/2009 8-13/6/2009 9-11/3/2009 9-12/12/2008 10-12/9/2008 11-13/6/2008 12-14/03/2008 11-14/12/2007 4-7/9/2007 8-12/6/2007 7-12/3/2007 6-12/12/2006 1-7/9/2006 13-15/6/2006 2-8/3/2006 9-14/12/2005 1-7/9/2005 6-8/6/2005 1-3/3/2005