| Value | Category | Cases | |
|---|---|---|---|
| 0 | 6 |
11.8%
|
|
| 1 | 9 |
17.6%
|
|
| 2 | 14 |
27.5%
|
|
| 3 | 18 |
35.3%
|
|
| 4 | 4 |
7.8%
|
|
| Sysmiss | 63 |