| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 134 |
9.7%
|
| 2 | 1 | 470 |
33.9%
|
| 3 | 2 | 366 |
26.4%
|
| 4 | 3 or more | 415 |
30%
|
| Sysmiss | 37 |