| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1 |
2.6%
|
|
| 1 | 3 |
7.7%
|
|
| 2 | 2 |
5.1%
|
|
| 3 | 7 |
17.9%
|
|
| 4 | 13 |
33.3%
|
|
| 5 | 7 |
17.9%
|
|
| 6 | 6 |
15.4%
|
|
| Sysmiss | 960 |