| Value | Category | Cases | |
|---|---|---|---|
| -9 | (-9) Refused | 5 |
0.1%
|
| -8 | (-8) Don't know | 52 |
1%
|
| 2006 | 237 |
4.4%
|
|
| 2007 | 39 |
0.7%
|
|
| 2008 | 40 |
0.7%
|
|
| 2009 | 43 |
0.8%
|
|
| 2010 | 74 |
1.4%
|
|
| 2011 | 60 |
1.1%
|
|
| 2012 | 78 |
1.4%
|
|
| 2013 | 62 |
1.1%
|
|
| 2014 | 99 |
1.8%
|
|
| 2015 | 126 |
2.3%
|
|
| 2016 | 173 |
3.2%
|
|
| 2017 | 211 |
3.9%
|
|
| 2018 | 290 |
5.3%
|
|
| 2019 | 542 |
10%
|
|
| 2020 | 1596 |
29.4%
|
|
| 2021 | 1699 |
31.3%
|
|
| Sysmiss | 16836 |