| Value | Category | Cases | |
|---|---|---|---|
| 0 | 42 |
1.8%
|
|
| 1 | 18 |
0.8%
|
|
| 2 | 85 |
3.5%
|
|
| 3 | 582 |
24.3%
|
|
| 4 | 1670 |
69.7%
|
|
| Sysmiss | 2432 |