| Value | Category | Cases | |
|---|---|---|---|
| 0 | 52 |
3.7%
|
|
| 1 | 52 |
3.7%
|
|
| 2 | 46 |
3.3%
|
|
| 3 | 331 |
23.7%
|
|
| 4 | 915 |
65.5%
|
|
| Sysmiss | 174 |