調查日期 <br> Date of survey	18 - 29	30+	整體  <br>Overall
26-27/8/1997	46.2%	30.1%	34.9%
23-24/9/1997	44.0%	33.0%	36.2%
28-29/10/1997	47.3%	32.4%	36.6%
8-9/12/1997	45.0%	32.2%	35.8%
3-4/6/1998	41.0%	31.3%	34.2%
22-24/6/1998	40.7%	28.1%	31.8%
14/8/1998	40.4%	24.8%	29.3%
29/9/1998	46.0%	30.6%	35.0%
21/12/1998	51.5%	36.3%	40.7%
8-9/2/1999	49.9%	37.9%	41.0%
15/4/1999	47.7%	41.5%	43.4%
8/6/1999	51.1%	34.6%	39.9%
6/8/1999	41.2%	27.4%	30.3%
26-27/10/1999	40.5%	27.2%	31.2%
13-15/12/1999	52.3%	32.7%	39.0%
1-2/2/2000	57.3%	31.0%	38.3%
6-7/4/2000	41.9%	37.4%	38.7%
7-8/6/2000	45.2%	32.0%	35.5%
21-25/9/2000	44.4%	35.7%	37.0%
4-12/12/2000	46.8%	32.2%	35.6%
22/3-2/4/2001	40.8%	29.1%	31.4%
1-5/6/2001	49.4%	32.4%	36.1%
13-21/9/2001	39.2%	22.3%	26.1%
7-9/12/2001	44.6%	28.2%	31.9%
12-13/3/2002	40.8%	23.5%	27.5%
4-5/6/2002	43.8%	29.4%	32.2%
2-5/9/2002	35.8%	26.3%	28.9%
13-18/12/2002	43.3%	27.8%	31.1%
1-4/3/2003	36.4%	25.5%	28.5%
13-18/6/2003	52.6%	32.4%	36.7%
10-14/12/2003	32.0%	22.4%	24.9%
7-11/6/2004	35.9%	25.5%	28.0%
6-9/12/2004	41.9%	20.9%	25.9%
6-8/6/2005	42.6%	19.5%	24.0%
9-14/12/2005	38.5%	20.6%	24.8%
13-15/6/2006	35.0%	22.4%	24.8%
6-12/12/2006	32.3%	20.3%	22.4%
8-12/6/2007	36.1%	20.4%	23.4%
11-14/12/2007	29.6%	21.5%	23.5%
11-13/6/2008	22.9%	16.6%	18.1%
9-12/12/2008	37.5%	17.8%	21.8%
8-13/6/2009	35.6%	22.4%	24.7%
8-11/12/2009	46.2%	35.6%	37.6%
9-13/6/2010	35.8%	22.3%	25.3%
13-16/12/2010	45.6%	32.5%	35.5%
21-22/6/2011	56.8%	39.8%	43.8%
12-20/12/2011	42.4%	36.4%	37.7%
13-20/6/2012	69.3%	39.7%	45.5%
14-17/12/2012	44.0%	23.4%	27.3%
10-13/6/2013	55.8%	34.3%	38.3%
9-12/12/2013	59.1%	29.3%	34.9%
6-12/6/2014	53.1%	37.5%	40.2%
10-16/12/2014	59.8%	37.9%	42.2%	
15-18/6/2015	62.9%	31.3%	36.5%	
3-7/12/2015	55.6%	37.0%	40.2%