| Value | Category | Cases | |
|---|---|---|---|
| 0 | NEVER | 4062 |
61.9%
|
| 98 | DON'T KNOW | 245 |
3.7%
|
| 2006 | 1 |
0%
|
|
| 2008 | 1 |
0%
|
|
| 2010 | 1 |
0%
|
|
| 2011 | 2 |
0%
|
|
| 2012 | 1 |
0%
|
|
| 2014 | 4 |
0.1%
|
|
| 2015 | 5 |
0.1%
|
|
| 2016 | 8 |
0.1%
|
|
| 2017 | 21 |
0.3%
|
|
| 2018 | 66 |
1%
|
|
| 2019 | 128 |
2%
|
|
| 2020 | 33 |
0.5%
|
|
| 2021 | 24 |
0.4%
|
|
| Sysmiss | 1958 |
29.8%
|