| Value | Category | Cases | |
|---|---|---|---|
| 0 | 2 |
2.5%
|
|
| 1 | 5 |
6.3%
|
|
| 2 | 16 |
20%
|
|
| 3 | 14 |
17.5%
|
|
| 4 | 8 |
10%
|
|
| 5 | 4 |
5%
|
|
| 6 | 31 |
38.8%
|
|
| Sysmiss | 919 |