| Value | Category | Cases | |
|---|---|---|---|
| 0 | 3 |
11.5%
|
|
| 1 | 18 |
69.2%
|
|
| 2 | 3 |
11.5%
|
|
| 4 | 1 |
3.8%
|
|
| 6 | 1 |
3.8%
|
|
| Sysmiss | 99 |