| Value | Category | Cases | |
|---|---|---|---|
| 0 | 2 |
2.4%
|
|
| 1 | 7 |
8.4%
|
|
| 2 | 8 |
9.6%
|
|
| 3 | 13 |
15.7%
|
|
| 4 | 19 |
22.9%
|
|
| 5 | 15 |
18.1%
|
|
| 6 | 19 |
22.9%
|
|
| Sysmiss | 916 |