| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0. never | 1410 |
92.8%
|
| 1 | 1. yes, more than a year ago | 43 |
2.8%
|
| 2 | 2. yes, in the last year | 66 |
4.3%
|
| Sysmiss | 44 |