| Value | Category | Cases | |
|---|---|---|---|
| 0 | 44 |
6.3%
|
|
| 1 | 23 |
3.3%
|
|
| 2 | 8 |
1.1%
|
|
| 3 | 201 |
28.8%
|
|
| 4 | 421 |
60.4%
|
|
| Sysmiss | 873 |