| Value | Category | Cases | |
|---|---|---|---|
| 1 | Rarely (Once or Twice in 4 weeks) | 15456 |
48.2%
|
| 2 | Sometimes (Three to Ten times in 4 weeks) | 12237 |
38.2%
|
| 3 | Often (More than ten times in 4 weeks) | 4285 |
13.4%
|
| 4 | Never | 97 |
0.3%
|
| Sysmiss | 63094 |