| Value | Category | Cases | |
|---|---|---|---|
| 0 | 7 |
11.5%
|
|
| 3 | 20 |
32.8%
|
|
| 4 | 19 |
31.1%
|
|
| 5 | 10 |
16.4%
|
|
| 6 | 2 |
3.3%
|
|
| 7 | 1 |
1.6%
|
|
| 8 | 2 |
3.3%
|
|
| Sysmiss | 731 |