| Value | Category | Cases | |
|---|---|---|---|
| 2013 | 1 |
33.3%
|
|
| 2017 | 1 |
33.3%
|
|
| 2022 | 1 |
33.3%
|
|
| 9998 | Don't know | 0 |
0%
|
| Sysmiss | 42009 |