| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 145 |
9.9%
|
| 2 | 1 | 303 |
20.7%
|
| 3 | 2 | 332 |
22.6%
|
| 4 | 3 or more | 687 |
46.8%
|
| Sysmiss | 39 |