| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 217 |
8.1%
|
| 1 | Yes | 11 |
0.4%
|
| 5 | missing | 1 |
0%
|
| 8 | dtk | 0 |
0%
|
| 9 | na | 2452 |
91.5%
|
| Sysmiss | 77 |