| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 58 |
3.2%
|
| 2 | 1 | 144 |
8.1%
|
| 3 | 2 | 248 |
13.9%
|
| 4 | 3 or more | 1336 |
74.8%
|
| Sysmiss | 17 |