| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 2290 |
97.2%
|
| 1 | Yes | 2 |
0.1%
|
| 5 | missing | 0 |
0%
|
| 8 | dtk | 24 |
1%
|
| 9 | na | 39 |
1.7%
|
| Sysmiss | 50 |