| Value | Category | Cases | |
|---|---|---|---|
| 0 | 34 |
12.5%
|
|
| 1 | 31 |
11.4%
|
|
| 2 | 29 |
10.7%
|
|
| 3 | 72 |
26.6%
|
|
| 4 | 105 |
38.7%
|
|
| Sysmiss | 13 |