| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 236 |
8.4%
|
| 2 | 1 | 286 |
10.1%
|
| 3 | 2 | 408 |
14.5%
|
| 4 | 3 or more | 1888 |
67%
|
| Sysmiss | 69 |