Contact InformationBack
Date of Survey |
Instant/Second round/Follow-up survey |
Successful Sample |
Response Rate/Effective Response Rate |
Standard Error |
14-19/3/2019 |
Second follow-up survey |
1024 |
73.1% |
1.6% |
28/2-1/3/2019 |
First follow-up survey |
512 |
67.8% |
2.2% |
27/2/2019 |
Instant survey |
621 |
78.2%# |
2.0% |
15-20/3/2018 |
Second follow-up survey |
1006 |
62.5% |
1.6% |
1-2/3/2018 |
First follow-up survey |
507 |
62.6% |
2.2% |
28/2/2017 |
Instant survey |
614 |
65.5% |
2.2% |
11-15/3/2017 |
Second follow-up survey |
1018 |
71.3% |
1.6% |
23-24/2/2017 |
First follow-up survey |
506 |
70.4% |
2.2% |
22/2/2017 |
Instant survey |
559 |
64.4% |
2.1% |
14-15/3/2016 |
Second follow-up survey |
505 |
67.9% |
2.2% |
25-26/2/2016 |
First follow-up survey |
514 |
68.6% |
2.2% |
24/2/2016 |
Instant survey |
528 |
63.6% |
2.2% |
16-19/3/2015 |
Second follow-up survey |
1014 |
69.5% |
1.6% |
26-27/2/2015 |
First follow-up survey |
520 |
66.5% |
2.2% |
25/2/2015 |
Instant survey |
610 |
67.4% |
2.0% |
17-20/3/2014 |
Second follow-up survey |
1027 |
68.1% |
1.6% |
27-28/2/2014 |
First follow-up survey |
516 |
67.6% |
2.2% |
26/2/2014 |
Instant survey |
1005 |
62.7% |
1.6% |
11-18/3/2013 |
Second follow-up survey |
1023 |
69.9% |
1.6% |
28/2-1/3/2013 |
First follow-up survey |
520 |
66.0% |
2.2% |
27/2/2013 |
Instant survey |
1024 |
67.3% |
3% |
7-9/3/2012 |
Second follow-up survey |
1010 |
65.8% |
1.6% |
2-3/2/2012 |
First follow-up survey |
504 |
63.7% |
2.2% |
1/2/2012 |
Instant survey |
1015 |
71.1% |
1.6% |
10-16/3/2011 |
Second follow-up survey |
1009 |
65.6% |
1.6% |
25-27/2/2010 |
First follow-up survey |
515 |
72.6% |
2.2% |
23/2/2011 |
Instant survey |
1031 |
72.8% |
1.6% |
23-25/3/2010 |
Second follow-up survey |
1012 |
69.3% |
1.6% |
25-27/2/2010 |
First follow-up survey |
517 |
67.1% |
2.2% |
24/2/2010 |
Instant survey |
1008 |
65.9% |
1.6% |
17-18/3/2009 |
Second follow-up survey |
1007 |
63.3% |
1.6% |
26/2/2009 |
First follow-up survey |
525 |
66.5% |
2.2% |
25/2/2009 |
Instant survey |
1015 |
67.7% |
1.6% |
12-14/3/2008 |
Second follow-up survey |
1017 |
65.8% |
1.6% |
28/2/2008 |
First follow-up survey |
525 |
70.1% |
2.2% |
27/2/2008 |
Instant survey |
1077 |
75.5% |
1.5% |
19-21/3/2007 |
Follow-up survey |
1007 |
63.6% |
1.6% |
28/2/2007 |
Instant survey |
1018 |
65.2% |
1.6% |
13-17/3/2006 |
Follow-up survey |
1010 |
59.4% |
1.6% |
22/2/2006 |
Instant survey |
1026 |
68.3% |
1.6% |
11-14/4/2005 |
Follow-up survey |
1009 |
62.8% |
1.6% |
16/3/2005 |
Instant survey |
1041 |
65.2% |
1.5% |
22-24/3/2004 |
Follow-up survey |
1015 |
67.8% |
1.6% |
10/3/2004 |
Instant survey |
1023 |
64.7% |
1.6% |
12-13/3/2003 |
Follow-up survey |
1040 |
72.3% |
1.6% |
5/3/2003 |
Instant survey |
1047 |
71.4% |
1.5% |
18-20/3/2002 |
Follow-up survey |
1216 |
60.1% |
1.4% |
6/3/2002 |
Instant survey |
1041 |
59.9% |
1.5% |
30-31/3/2001 |
Follow-up survey |
511 |
73.3% |
2.2% |
7-8/3/2001 |
Instant survey |
502 |
67.1% |
2.2% |
20/3/2000 |
Follow-up survey |
660 |
56.7% |
2.0% |
8/3/2000 |
Instant survey |
856 |
56.4% |
1.7% |
18/3/1999 |
Follow-up survey |
530 |
55.4% |
2.2% |
3/3/1999 |
Instant survey |
1190 |
62.1% |
1.4% |
24/2/1998 |
Follow-up survey |
538 |
56.7% |
2.2% |
18/2/1998 |
Instant survey |
804 |
54.7% |
1.8% |
* "response rate" was used before July 2017, thereafter, "effective response rate" was used.
# Excluding panel samples
