調查日期<br>Date of Survey	樣本人數<br>Total Sample	次樣本人數<br>Subsample	回應率<br>Response rate	評分<br>Ratings	標準誤差<br>Standard Error	評分人數<br>Number of Raters	認知率<br>Recognition rate
9-10/9/1997	518	518	43.0%	6.55	0.07	484	93.4%
14-15/10/1997	517	517	46.6%	6.30	0.06	477	92.3%
18/11/1997	530	530	43.9%	6.48	0.06	503	94.9%
19/1/1998	512	512	47.7%	6.37	0.06	472	92.2%
21/7/1998	553	553	47.0%	6.41	0.07	510	92.2%
15/9/1998	510	510	42.5%	6.58	0.06	491	96.3%
17-18/11/1998	502	502	45.0%	6.10	0.06	480	95.6%
19-20/1/1999	510	510	54.2%	6.33	0.07	483	94.7%
18/3/1999	530	530	55.4%	6.10	0.07	511	96.4%
18/5/1999	518	518	48.0%	6.06	0.07	488	94.2%
16-19/7/1999	553	553	52.8%	5.84	0.07	527	95.3%
7-8/9/1999	550	550	46.7%	5.48	0.08	515	93.6%
16-22/11/1999	572	572	50.1%	5.52	0.69	550	96.2%
21-24/1/2000	537	537	56.1%	5.63	0.07	512	95.3%
6-7/3/2000	530	530	62.8%	5.61	0.07	508	95.8%
23-25/5/2000	1053	1053	46.9%	5.89	0.05	985	93.5%
8-12/8/2000	1059	1059	52.8%	5.74	0.05	989	93.4%
23-27/11/2000	1056	1056	49.5%	5.93	0.05	959	90.8%
5-13/2/2001	1061	1061	61.4%	5.80	0.05	946	89.2%
25-29/5/2001	1055	1055	69.4%	5.88	0.05	984	93.3%
1-3/8/2001	1015	1015	80.0%	5.87	0.06	938	92.4%
15-20/11/2001	1057	1057	67.0%	6.02	0.05	937	88.6%
4-6/2/2002	1001	1001	56.9%	5.76	0.06	885	88.4%
14-16/5/2002	1009	1009	63.6%	6.01	0.06	902	89.4%
14-19/8/2002	1018	1018	68.0%	5.76	0.05	927	91.1%
13-20/11/2002	1058	1058	65.2%	5.46	0.06	977	92.3%
14-18/2/2003	1045	1045	68.3%	5.68	0.06	979	93.7%
15-20/5/2003	1067	1067	65.1%	6.10	0.05	1003	94.0%
11-12/8/2003	1010	1010	68.7%	6.10	0.05	945	93.6%
10-12/11/2003	1062	1062	63.4%	5.65	0.05	1020	96.0%
9-14/2/2004	1008	1008	66.0%	6.16	0.06	940	93.3%
10-13/5/2004	1021	1021	61.9%	5.91	0.05	977	95.7%
9-16/8/2004	1019	1019	62.9%	5.99	0.06	959	94.1%
8-11/11/2004	1000	1000	64.5%	5.90	0.05	961	96.1%
14-16/2/2005	1024	1024	65.2%	6.05	0.06	956	93.4%
9-12/5/2005	1004	1004	62.6%	5.92	0.05	951	94.7%
5-9/8/2005	1001	1001	61.0%	5.81	0.05	959	95.8%
9-13/11/2005	1016	1016	64.1%	6.08	0.05	987	97.1%
3-7/4/2006	1029	1029	59.5%	5.72	0.05	986	95.8%
3-6/10/2006	1022	1022	61.3%	5.60	0.06	993	97.2%
2-10/4/2007	1009	1009	60.6%	5.94	0.05	975	96.6%
2-5/10/2007	1008	1008	65.4%	5.90	0.05	989	98.1%
9-11/4/2008	1011	1011	68.6%	6.11	0.05	981	97.0%
17-21/10/2008	1004	1004	67.7%	6.29	0.05	991	98.7%
6-9/4/2009	1010	1010	67.5%	6.09	0.05	997	98.7%
7-13/9/2009	1002	1002	69.7%	6.25	0.05	988	98.6%
15-25/4/2010	1020	1020	69.8%	6.18	0.05	1008	98.8%
7-11/9/2010	1011	1011	65.3%	6.53	0.05	999	98.8%
11-18/4/2011	1003	524	66.0%	6.03	0.08	517	98.8%
5-10/9/2011	1038	520	66.2%	6.29	0.07	511	98.3%
10-18/4/2012	1012	593	65.8%	6.22	0.06	582	98.2%
8-18/10/2012	1012	511	67.8%	6.16	0.08	493	96.5%
28-31/5/2013	1012	630	66.8%	6.01	0.07	617	97.8%
28-31/10/2013	1022	539	68.9%	6.14	0.08	530	98.4%
7-10/4/2014	1015	546	68.1%	6.01	0.09	533	97.7%
23-30/9/2014	1032	649	67.7%	5.84	0.08	633	97.5%	7/10/2014
13-16/4/2015	1024	592	69.1%	5.72	0.07	585	98.8%	21/4/2015
24-30/9/2015	1046	607	61.8%	5.86	0.07	600	98.9%	6/10/2015