| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1103 |
23.3%
|
|
| 1 | 1568 |
33.2%
|
|
| 2 | 1108 |
23.4%
|
|
| 3 | 382 |
8.1%
|
|
| 7 | 430 |
9.1%
|
|
| 8 | 94 |
2%
|
|
| 999 | 45 |
1%
|
|
| Sysmiss | 99 |