| Value | Category | Cases | |
|---|---|---|---|
| 0 | 230 |
10.8%
|
|
| 1 | 159 |
7.5%
|
|
| 2 | 385 |
18.1%
|
|
| 3 | 457 |
21.4%
|
|
| 4 | 901 |
42.3%
|
|
| Sysmiss | 31 |