| Value | Category | Cases | |
|---|---|---|---|
| 0 | 4 |
6.9%
|
|
| 1 | 13 |
22.4%
|
|
| 2 | 2 |
3.4%
|
|
| 4 | 27 |
46.6%
|
|
| 5 | 2 |
3.4%
|
|
| 6 | 10 |
17.2%
|
|
| Sysmiss | 1893 |