| Value | Category | Cases | |
|---|---|---|---|
| 1 | Rarely (Once or Twice in 4 weeks) | 14314 |
49.9%
|
| 2 | Sometimes (Three to Ten times in 4 weeks) | 10097 |
35.2%
|
| 3 | Often (More than ten times in 4 weeks) | 4107 |
14.3%
|
| 4 | Never | 193 |
0.7%
|
| Sysmiss | 66458 |