| Value | Category | Cases | |
|---|---|---|---|
| 0 | 150 |
21.5%
|
|
| 1 | 47 |
6.7%
|
|
| 2 | 90 |
12.9%
|
|
| 3 | 219 |
31.4%
|
|
| 4 | 191 |
27.4%
|
|
| Sysmiss | 873 |