| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 34 |
3.3%
|
| 2 | 1 | 56 |
5.5%
|
| 3 | 2 | 78 |
7.6%
|
| 4 | 3 or more | 854 |
83.6%
|
| Sysmiss | 6 |