調查日期 <br> Date of survey	18 - 29	30+	整體  <br>Overall
26-27/8/1997	68.4%	56.5%	59.7%
23-24/9/1997	68.5%	56.8%	60.4%
28-29/10/1997	65.6%	56.4%	59.2%
8-9/12/1997	67.8%	55.3%	58.7%
3-4/6/1998	60.2%	50.3%	52.8%
22-24/6/1998	61.6%	50.9%	53.8%
14/8/1998	63.0%	51.5%	54.9%
29/9/1998	66.6%	55.9%	58.9%
21/12/1998	70.2%	60.2%	63.0%
8-9/2/1999	67.6%	59.9%	61.9%
15/4/1999	72.2%	60.1%	63.4%
8/6/1999	75.5%	60.0%	64.9%
6/8/1999	62.6%	52.0%	53.6%
26-27/10/1999	62.0%	52.3%	54.9%
13-15/12/1999	67.7%	55.9%	59.9%
1-2/2/2000	78.0%	55.8%	61.5%
6-7/4/2000	66.9%	57.7%	60.1%
7-8/6/2000	66.6%	55.4%	58.4%
21-25/9/2000	69.7%	63.7%	63.8%
4-12/12/2000	63.4%	51.3%	54.7%
22/3-2/4/2001	62.1%	50.1%	53.1%
1-5/6/2001	69.4%	50.7%	54.4%
13-21/9/2001	65.8%	51.5%	54.0%
7-9/12/2001	64.0%	48.8%	52.4%
12-13/3/2002	63.8%	47.4%	50.8%
4-5/6/2002	58.6%	48.2%	50.3%
2-5/9/2002	61.1%	47.3%	50.9%
13-18/12/2002	64.5%	49.9%	52.4%
1-4/3/2003	58.4%	47.9%	50.8%
13-18/6/2003	69.7%	51.5%	55.9%
10-14/12/2003	59.8%	44.5%	48.3%
7-11/6/2004	58.7%	46.1%	49.2%
6-9/12/2004	67.5%	44.5%	49.0%
6-8/6/2005	61.3%	41.1%	45.2%
9-14/12/2005	64.5%	47.1%	51.3%
13-15/6/2006	58.2%	48.0%	49.9%
6-12/12/2006	60.6%	43.5%	46.8%
8-12/6/2007	65.7%	53.0%	55.2%
11-14/12/2007	69.1%	51.1%	54.9%
11-13/6/2008	58.3%	44.6%	47.3%
9-12/12/2008	66.3%	47.3%	51.4%
8-13/6/2009	71.2%	53.7%	56.7%
8-11/12/2009	73.5%	58.8%	61.5%
9-13/6/2010	66.2%	54.0%	56.5%
13-16/12/2010	75.1%	59.9%	63.1%
21-22/6/2011	81.9%	59.7%	65.2%
12-20/12/2011	75.2%	59.2%	62.9%
13-20/6/2012	84.9%	64.2%	68.2%
14-17/12/2012	85.0%	54.3%	60.1%
10-13/6/2013	84.3%	57.6%	62.6%
9-12/12/2013	87.6%	56.8%	62.6%
6-12/6/2014	86.7%	62.3%	67.3%
10-16/12/2014	81.6%	62.9%	66.5%	
15-18/6/2015	87.0%	59.2%	63.8%	
3-7/12/2015	86.2%	63.9%	67.7%