| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 1820 |
77.2%
|
| 1 | Yes | 476 |
20.2%
|
| 5 | missing | 0 |
0%
|
| 8 | dtk | 24 |
1%
|
| 9 | na | 39 |
1.7%
|
| Sysmiss | 46 |