| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 689 |
9.2%
|
| 2 | 1 | 1180 |
15.7%
|
| 3 | 2 | 1464 |
19.5%
|
| 4 | 3 or more | 4176 |
55.6%
|
| Sysmiss | 67 |