| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 206 |
7.1%
|
| 2 | 1 | 262 |
9.1%
|
| 3 | 2 | 426 |
14.8%
|
| 4 | 3 or more | 1993 |
69%
|
| Sysmiss | 84 |