| Value | Category | Cases | |
|---|---|---|---|
| 2016 | 11 |
1.6%
|
|
| 2017 | 88 |
12.5%
|
|
| 2018 | 91 |
12.9%
|
|
| 2019 | 8 |
1.1%
|
|
| 9999 | NO RESPONSE | 1 |
0.1%
|
| Sysmiss | 504 |
71.7%
|