| Value | Category | Cases | |
|---|---|---|---|
| 0 | 77 |
9.6%
|
|
| 1 | 45 |
5.6%
|
|
| 2 | 63 |
7.8%
|
|
| 3 | 245 |
30.4%
|
|
| 4 | 376 |
46.7%
|
|
| Sysmiss | 889 |