| Value | Category | Cases | |
|---|---|---|---|
| 0 | 13 |
11%
|
|
| 1 | 22 |
18.6%
|
|
| 2 | 44 |
37.3%
|
|
| 3 | 39 |
33.1%
|
|
| Sysmiss | 4 |