| Value | Category | Cases | |
|---|---|---|---|
| 99 | Don't know | 0 |
0%
|
| 2013 | 1 |
0%
|
|
| 2014 | 11 |
0.4%
|
|
| 2015 | 1185 |
48.2%
|
|
| 2016 | 1259 |
51.2%
|
|
| 2017 | 2 |
0.1%
|
|
| Sysmiss | 756 |