Contact InformationBack
Date of Survey | Instant/First follow-up survey/Second follow-up survey | Successful Sample | Response Rate | Standard Error |
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% |
13-17/2/2006 | 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% | 1.8% |
24/2/1998 | Follow-up survey | 538 | 56.7% | 2.2% |
18/2/1998 | Instant survey | 804 | 54.7% | 1.8% |