| Value | Category | Cases | |
|---|---|---|---|
| 0 | 22 |
8.1%
|
|
| 1 | 21 |
7.7%
|
|
| 2 | 28 |
10.3%
|
|
| 3 | 74 |
27.3%
|
|
| 4 | 126 |
46.5%
|
|
| Sysmiss | 13 |