| Value | Category | Cases | |
|---|---|---|---|
| 0 | 9 |
7.1%
|
|
| 2 | 110 |
87.3%
|
|
| 6 | 2 |
1.6%
|
|
| 7 | 3 |
2.4%
|
|
| 9 | 2 |
1.6%
|
|
| Sysmiss | 1085 |