| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 65 |
8.2%
|
| 2 | 1 | 66 |
8.4%
|
| 3 | 2 | 148 |
18.8%
|
| 4 | 3 or more | 509 |
64.6%
|
| Sysmiss | 25 |