| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 522 |
35.3%
|
| 2 | One | 170 |
11.5%
|
| 3 | Two | 151 |
10.2%
|
| 4 | Three | 108 |
7.3%
|
| 5 | Four or more | 330 |
22.3%
|
| 6 | Not sure | 199 |
13.4%
|
| Sysmiss | 4 |