| Value | Category | Cases | |
|---|---|---|---|
| 0 | 35 |
5%
|
|
| 1 | 15 |
2.2%
|
|
| 2 | 11 |
1.6%
|
|
| 3 | 156 |
22.4%
|
|
| 4 | 480 |
68.9%
|
|
| Sysmiss | 873 |