| Value | Category | Cases | |
|---|---|---|---|
| 0 | 510 |
10.3%
|
|
| 1 | 748 |
15.1%
|
|
| 2 | 738 |
14.9%
|
|
| 3 | 1552 |
31.3%
|
|
| 4 | 1416 |
28.5%
|
|
| Sysmiss | 3611 |