| Value | Category | Cases | |
|---|---|---|---|
| 0 | 39 |
12%
|
|
| 1 | Yes | 2 |
0.6%
|
| 2 | No | 283 |
87.1%
|
| 8 | 1 |
0.3%
|
|
| Sysmiss | 496 |