| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 175 |
3.5%
|
| 2 | 1 | 440 |
8.7%
|
| 3 | 2 | 708 |
14%
|
| 4 | 3 or more | 3745 |
73.9%
|
| Sysmiss | 47 |