| Value | Category | Cases | |
|---|---|---|---|
| 0 | 54 |
6.7%
|
|
| 1 | 22 |
2.7%
|
|
| 2 | 14 |
1.7%
|
|
| 3 | 269 |
33.4%
|
|
| 4 | 447 |
55.5%
|
|
| Sysmiss | 889 |