| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 5 |
2.2%
|
| 1 | Yes | 222 |
96.1%
|
| 2 | 1 |
0.4%
|
|
| 9 | Missing | 3 |
1.3%
|
| Sysmiss | 721 |