| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 183 |
5.9%
|
| 2 | 1 | 292 |
9.4%
|
| 3 | 2 | 504 |
16.3%
|
| 4 | 3 or more | 2122 |
68.4%
|
| Sysmiss | 48 |