| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 49 |
2.9%
|
| 2 | 1 | 106 |
6.3%
|
| 3 | 2 | 242 |
14.3%
|
| 4 | 3 or more | 1297 |
76.6%
|
| Sysmiss | 27 |