Year |
Survey Period |
Sample Size |
Sampling Error at 95%
Confidence Level |
Response Rate
|
2006 |
2, 4, 7¡V9/8 |
1,076 |
¡Ó 3.0% |
35% |
2008 |
4-5, 8-9, 12,
15-17/9 |
997 |
¡Ó 3.1% |
36% |
2010 |
29-30/9,
3-5, 12-13, 26, 28/10 |
1,015 |
± 3.1% |
41% |
2012 |
31/10, 1-2, 5-9, 11/11 |
948 |
± 3.2% |
38% |
2014 |
15-19, 23,
29-30/12/2014-2/1/2015 |
863 |
± 3.3% |
31% |
2016 |
25, 28-30/11,
1-2, 5-9/12/2016 |
1,124 |
¡Ó 2.9% |
37% |