| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 23 |
3.5%
|
| 2 | 1 to 3 times | 252 |
37.8%
|
| 3 | 4 to 6 times | 195 |
29.3%
|
| 4 | More than 6 times | 178 |
26.7%
|
| 5 | Don't know | 18 |
2.7%
|
| Sysmiss | 3 |