| Value | Category | Cases | |
|---|---|---|---|
| -1 | refuse | 4 |
10.5%
|
| 0 | 1 |
2.6%
|
|
| 1 | 6 |
15.8%
|
|
| 2 | 4 |
10.5%
|
|
| 3 | 2 |
5.3%
|
|
| 5 | 1 |
2.6%
|
|
| 6 | 10 |
26.3%
|
|
| 12 | 8 |
21.1%
|
|
| 24 | 2 |
5.3%
|
|
| Sysmiss | 1011 |