| Value | Category | Cases | |
|---|---|---|---|
| 0 | 4 |
15.4%
|
|
| 1 | 15 |
57.7%
|
|
| 2 | 4 |
15.4%
|
|
| 3 | 2 |
7.7%
|
|
| 6 | 1 |
3.8%
|
|
| Sysmiss | 99 |