| Value | Category | Cases | |
|---|---|---|---|
| 0 | 56 |
2.6%
|
|
| 1 | 847 |
39.4%
|
|
| 2 | 1017 |
47.3%
|
|
| 3 | 231 |
10.7%
|
|
| Sysmiss | 2331 |