| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1984- | 3 |
27.3%
|
| 1 | 1999- | 4 |
36.4%
|
| 2 | 2007- | 4 |
36.4%
|
| 3 | 2010- | 0 |
0%
|
| Sysmiss | 1 |