| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 176 |
8.4%
|
| 2 | 1 | 275 |
13.1%
|
| 3 | 2 | 303 |
14.4%
|
| 4 | 3 or more | 1348 |
64.1%
|
| Sysmiss | 20 |