| Value | Category | Cases | |
|---|---|---|---|
| 0 | 308 |
9.3%
|
|
| 1 | 1391 |
42%
|
|
| 2 | 1061 |
32.1%
|
|
| 3 | 490 |
14.8%
|
|
| 4 | 59 |
1.8%
|
|
| Sysmiss | 18 |