| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0 | 265 |
89.2%
|
| 1 | 1 | 15 |
5.1%
|
| 2 | 2 | 3 |
1%
|
| 99 | Unspecified | 14 |
4.7%
|
| Sysmiss | 1361 |