| Value | Category | Cases | |
|---|---|---|---|
| 0 | 2 |
1.6%
|
|
| 1 | 17 |
13.8%
|
|
| 2 | 27 |
22%
|
|
| 3 | 22 |
17.9%
|
|
| 4 | 21 |
17.1%
|
|
| 5 | 10 |
8.1%
|
|
| 6 | 24 |
19.5%
|
|
| Sysmiss | 876 |