| Value | Category | Cases | |
|---|---|---|---|
| 0 | 147 |
6.6%
|
|
| 1 | 558 |
25.1%
|
|
| 2 | 892 |
40.1%
|
|
| 3 | 418 |
18.8%
|
|
| 4 | 207 |
9.3%
|
|
| Sysmiss | 7 |