調查日期<br>Date of Survey	有<br>Yes	冇<br>No	唔知/難講<br>Don't know / Hard to say	合計<br>Total
22-23/5/1996	86.3%	5.2%	8.5%	100.0%
27/5/1997	87.0%	5.7%	7.3%	100.0%
26/5/1998	78.7%	9.6%	11.6%	100.0%
24/5/1999	83.8%	7.9%	8.3%	100.0%
30-31/5/2000	78.7%	9.9%	11.4%	100.0%
25-29/5/2001	79.0%	10.9%	10.1%	100.0%
14-16/5/2002	71.6%	12.4%	16.1%	100.0%
15-20/5/2003	72.4%	15.0%	12.7%	100.0%
18-20/5/2004	75.9%	12.6%	11.6%	100.0%
21-24/5/2005	82.4%	10.7%	6.9%	100.0%
18-25/5/2006	83.2%	11.3%	5.5%	100.0%
16-25/5/2007	81.6%	12.4%	6.0%	100.0%
28/5-2/6/2008	81.3%	10.6%	8.1%	100.0%
19-22/5/2009	80.8%	13.7%	5.5%	100.0%
18-20/5/2010	77.7%	16.8%	5.5%	100.0%
16-18/5/2011	68.2%	23.0%	8.8%	100.0%
22-29/5/2012	71.1%	20.5%	8.4%	100.0%
23-25/5/2013	67.3%	23.6%	9.2%	100.0%
17-22/5/2014	62.5%	26.5%	11.1%	100.0%
22-28/5/2015	65.7%	23.7%	10.6%	100.0%