| Value | Category | Cases | |
|---|---|---|---|
| 0 | 531 |
10.7%
|
|
| 1 | 755 |
15.2%
|
|
| 2 | 791 |
15.9%
|
|
| 3 | 1557 |
31.4%
|
|
| 4 | 1332 |
26.8%
|
|
| Sysmiss | 3609 |