| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 66 |
5.4%
|
| 2 | 1 | 103 |
8.5%
|
| 3 | 2 | 157 |
12.9%
|
| 4 | 3 or more | 889 |
73.2%
|
| Sysmiss | 19 |