| Value | Category | Cases | |
|---|---|---|---|
| 1 | Rarely (Once or Twice in 4 weeks) | 2813 |
52.8%
|
| 2 | Sometimes (Three to Ten times in 4 weeks) | 2030 |
38.1%
|
| 3 | Often (More than ten times in 4 weeks) | 473 |
8.9%
|
| 4 | Never | 16 |
0.3%
|
| Sysmiss | 10494 |