| Value | Category | Cases | |
|---|---|---|---|
| 0 | 20 |
2.9%
|
|
| 1 | 19 |
2.7%
|
|
| 2 | 52 |
7.5%
|
|
| 3 | 292 |
41.9%
|
|
| 4 | 314 |
45.1%
|
|
| Sysmiss | 873 |