| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 328 |
9.1%
|
| 2 | 1 | 555 |
15.4%
|
| 3 | 2 | 673 |
18.7%
|
| 4 | 3 or more | 2039 |
56.7%
|
| Sysmiss | 34 |