| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 45 |
4.6%
|
| 2 | 1 to 3 times | 519 |
53.6%
|
| 3 | 4 to 6 times | 299 |
30.9%
|
| 4 | More than 6 times | 95 |
9.8%
|
| 5 | Don't know | 11 |
1.1%
|
| Sysmiss | 11 |