| Value | Category | Cases | |
|---|---|---|---|
| 0 | 34 |
4.9%
|
|
| 1 | 31 |
4.4%
|
|
| 2 | 66 |
9.5%
|
|
| 3 | 282 |
40.5%
|
|
| 4 | 284 |
40.7%
|
|
| Sysmiss | 873 |