| Value | Category | Cases | |
|---|---|---|---|
| 0 | 80 |
35.6%
|
|
| 1 | 135 |
60%
|
|
| 2 | 5 |
2.2%
|
|
| 3 | 1 |
0.4%
|
|
| 99 | Not applicable | 4 |
1.8%
|
| Sysmiss | 25 |