| Value | Category | Cases | |
|---|---|---|---|
| 0 | 16 |
2.3%
|
|
| 1 | 10 |
1.4%
|
|
| 2 | 8 |
1.1%
|
|
| 3 | 184 |
26.4%
|
|
| 4 | 479 |
68.7%
|
|
| Sysmiss | 873 |