| Value | Category | Cases | |
|---|---|---|---|
| 0 | 31 |
83.8%
|
|
| 1 | 5 |
13.5%
|
|
| 2 | 1 |
2.7%
|
|
| 999 | REFUSED | 0 |
0%
|
| Sysmiss | 8121 |