調查日期<br>Date of Survey	半年結樣本人數<br>Total Sample<br>(Half-yearly Average)	回應率<br>Response rate	有<br>Yes	冇<br>No	唔知/難講<br>DK/HS	合計<br>Total	淨值<br/>Net Value
7-12/1997	1565	44.5%	54.5%	31.4%	14.1%	100.0%	23.2%
1-6/1998	512	47.7%	53.2%	34.6%	12.2%	100.0%	18.6%
7-12/1998	1565	44.8%	63.1%	25.1%	11.8%	100.0%	38.0%
1-6/1999	1558	52.5%	68.1%	21.1%	10.7%	100.0%	47.0%
7-12/1999	1675	49.9%	71.8%	15.9%	12.3%	100.0%	55.9%
1-6/2000	2120	55.3%	66.9%	21.1%	12.0%	100.0%	45.8%
7-12/2000	2115	51.2%	65.7%	19.0%	15.3%	100.0%	46.8%
1-6/2001	2116	65.4%	63.2%	21.3%	15.7%	100.0%	41.9%
7-12/2001	2072	73.5%	64.3%	22.3%	13.4%	100.0%	42.0%
1-6/2002	2010	60.3%	67.0%	18.0%	15.1%	100.0%	49.0%
7-12/2002	2076	66.6%	64.7%	19.4%	16.0%	100.0%	45.3%
1-6/2003	2112	66.7%	70.4%	17.0%	12.7%	100.0%	53.4%
7-12/2003	2072	66.1%	72.3%	17.4%	10.3%	100.0%	54.9%
1-6/2004	2029	64.0%	65.1%	20.9%	14.0%	100.0%	44.2%
7-12/2004	2019	63.7%	65.5%	22.5%	12.0%	100.0%	43.0%
1-6/2005	2028	63.9%	66.5%	20.8%	12.8%	100.0%	45.8%
7-12/2005	2017	62.5%	64.3%	25.1%	10.6%	100.0%	39.2%
1-6/2006	1029	59.5%	74.1%	20.0%	5.9%	100.0%	54.1%
7-12/2006	1022	61.3%	72.7%	21.3%	6.0%	100.0%	51.3%
1-6/2007	1009	60.6%	74.2%	21.7%	4.1%	100.0%	52.4%
7-12/2007	1008	65.4%	70.7%	22.9%	6.4%	100.0%	47.9%
1-6/2008	1011	68.6%	74.2%	20.4%	5.5%	100.0%	53.8%
7-12/2008	1004	67.7%	74.2%	21.8%	4.0%	100.0%	52.4%
1-6/2009	1010	67.5%	74.8%	20.3%	4.9%	100.0%	54.4%
7-12/2009	1002	69.7%	74.5%	20.7%	4.8%	100.0%	53.8%
1-6/2010	1020	69.8%	71.0%	23.5%	5.5%	100.0%	47.5%
7-12/2010	1011	65.3%	73.2%	20.8%	6.0%	100.0%	52.4%
1-6/2011	542	66.0%	74.9%	21.5%	3.6%	100.0%	53.3%
7-12/2011	559	66.2%	68.0%	24.7%	7.3%	100.0%	43.3%
1-6/2012	619	65.8%	69.8%	23.3%	7.0%	100.0%	46.5%
7-12/2012	522	67.8%	72.6%	21.3%	6.1%	100.0%	51.2%
1-6/2013	617	66.8%	71.3%	22.3%	6.4%	100.0%	49.0%
7-12/2013	510	68.9%	59.6%	33.1%	7.3%	100.0%	26.5%
1-6/2014	537	68.1%	62.0%	30.2%	7.8%	100.0%	31.8%
7-12/2014	652	67.7%	61.2%	29.1%	9.6%	100.0%	32.1%
1-6/2015	599	69.1%	62.6%	32.4%	5.0%	100.0%	30.2%
7-12/2015	632	61.8%	57.1%	33.0%	9.9%	100.0%	24.1%