| Value | Category | Cases | |
|---|---|---|---|
| 0 | 40 |
5.7%
|
|
| 1 | 19 |
2.7%
|
|
| 2 | 28 |
4%
|
|
| 3 | 218 |
31.3%
|
|
| 4 | 392 |
56.2%
|
|
| Sysmiss | 873 |