| Value | Category | Cases | |
|---|---|---|---|
| 1 | Rarely (Once or Twice in 4 weeks) | 13831 |
51.8%
|
| 2 | Sometimes (Three to Ten times in 4 weeks) | 9051 |
33.9%
|
| 3 | Often (More than ten times in 4 weeks) | 3642 |
13.6%
|
| 4 | Never | 159 |
0.6%
|
| Sysmiss | 68486 |