| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 3512 |
72.8%
|
| 2 | One | 1192 |
24.7%
|
| 3 | Two | 91 |
1.9%
|
| 4 | Three or more | 32 |
0.7%
|
| Sysmiss | 19580 |