| Value | Category | Cases | |
|---|---|---|---|
| 0 | 38 |
4.6%
|
|
| 1 | 25 |
3%
|
|
| 2 | 28 |
3.4%
|
|
| 3 | 135 |
16.2%
|
|
| 4 | 605 |
72.8%
|
|
| Sysmiss | 407 |