| Value | Category | Cases | |
|---|---|---|---|
| 0 | 49 |
2.3%
|
|
| 1 | 455 |
21.7%
|
|
| 2 | 822 |
39.2%
|
|
| 3 | 430 |
20.5%
|
|
| 4 | 339 |
16.2%
|
|
| Sysmiss | 68 |