| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 125 |
4%
|
| 1 | Yes | 20 |
0.6%
|
| 5 | missing | 0 |
0%
|
| 8 | dtk | 0 |
0%
|
| 9 | na | 3006 |
95.4%
|
| Sysmiss | 1485 |