| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 115 |
8.8%
|
| 2 | 1 | 142 |
10.9%
|
| 3 | 2 | 185 |
14.2%
|
| 4 | 3 or more | 859 |
66%
|
| Sysmiss | 32 |