| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 72 |
7.9%
|
| 2 | 1 | 310 |
33.9%
|
| 3 | 2 | 255 |
27.9%
|
| 4 | 3 or more | 277 |
30.3%
|
| Sysmiss | 23 |