| Value | Category | Cases | |
|---|---|---|---|
| 0 | 3056 |
36.6%
|
|
| 1 | 1369 |
16.4%
|
|
| 2 | 3497 |
41.9%
|
|
| 3 | 418 |
5%
|
|
| Sysmiss | 8986 |