| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 133 |
6.9%
|
| 2 | 1 | 236 |
12.2%
|
| 3 | 2 | 370 |
19.1%
|
| 4 | 3 or more | 1197 |
61.8%
|
| Sysmiss | 35 |