| Value | Category | Cases | |
|---|---|---|---|
| 0 | 158 |
7.4%
|
|
| 1 | 289 |
13.5%
|
|
| 2 | 531 |
24.9%
|
|
| 3 | 509 |
23.8%
|
|
| 4 | 648 |
30.4%
|
|
| Sysmiss | 28 |