| Value | Category | Cases | |
|---|---|---|---|
| 0 | 3 |
5.9%
|
|
| 1 | 20 |
39.2%
|
|
| 2 | 18 |
35.3%
|
|
| 3 | 8 |
15.7%
|
|
| 4 | 2 |
3.9%
|
|
| Sysmiss | 63 |