| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1 |
2.2%
|
|
| 2 | 2 |
4.4%
|
|
| 3 | 26 |
57.8%
|
|
| 4 | 16 |
35.6%
|
|
| Sysmiss | 69 |