| Value | Category | Cases | |
|---|---|---|---|
| 0 | 15 |
30.6%
|
|
| 1 | 21 |
42.9%
|
|
| 2 | 5 |
10.2%
|
|
| 3 | 6 |
12.2%
|
|
| 4 | 2 |
4.1%
|
|
| Sysmiss | 1 |