| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 306 |
11.4%
|
| 2 | 1 | 621 |
23.2%
|
| 3 | 2 | 487 |
18.2%
|
| 4 | 3 or more | 1265 |
47.2%
|
| Sysmiss | 11 |