| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 2867 |
72.6%
|
| 2 | Yes, once or twice | 804 |
20.4%
|
| 3 | Yes, many times | 277 |
7%
|
| 99 | Not specified | 0 |
0%
|
| Sysmiss | 50 |