| Value | Category | Cases | |
|---|---|---|---|
| 0 | none | 188 |
2.5%
|
| 1 | 1/4 | 986 |
12.9%
|
| 2 | 1/2 | 4066 |
53.2%
|
| 3 | 3/4 | 1996 |
26.1%
|
| 4 | all | 412 |
5.4%
|
| Sysmiss | 46 |