| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 141 |
6%
|
| 2 | 1 | 232 |
9.9%
|
| 3 | 2 | 345 |
14.7%
|
| 4 | 3 or more | 1630 |
69.4%
|
| Sysmiss | 53 |