| Value | Category | Cases | |
|---|---|---|---|
| 0 | 421 |
19.5%
|
|
| 1 | 274 |
12.7%
|
|
| 2 | 766 |
35.6%
|
|
| 3 | 531 |
24.7%
|
|
| 4 | 162 |
7.5%
|
|
| Sysmiss | 9 |