| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 98 |
3.5%
|
| 2 | 1 | 273 |
9.8%
|
| 3 | 2 | 433 |
15.5%
|
| 4 | 3 or more | 1991 |
71.2%
|
| Sysmiss | 11 |