| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 310 |
5.8%
|
| 2 | 1 | 476 |
8.9%
|
| 3 | 2 | 820 |
15.3%
|
| 4 | 3 or more | 3757 |
70.1%
|
| Sysmiss | 30 |