| Value | Category | Cases | |
|---|---|---|---|
| 0 | none | 460 |
6%
|
| 1 | 1/4 | 2117 |
27.7%
|
| 2 | 1/2 | 3977 |
52.1%
|
| 3 | 3/4 | 806 |
10.6%
|
| 4 | all | 279 |
3.7%
|
| Sysmiss | 55 |