| Value | Category | Cases | |
|---|---|---|---|
| 2014 | 14 |
0.4%
|
|
| 2015 | 630 |
20.1%
|
|
| 2016 | 774 |
24.7%
|
|
| 2017 | 699 |
22.3%
|
|
| 2018 | 523 |
16.7%
|
|
| 2019 | 434 |
13.9%
|
|
| 2020 | 59 |
1.9%
|
|
| 9997 | inconsistent | 0 |
0%
|
| 9998 | don't know | 0 |
0%
|
| Sysmiss | 9816 |