| Value | Category | Cases | |
|---|---|---|---|
| 1 | Rarely (once or twice in the past four weeks) | 422 |
74.2%
|
| 2 | Sometimes (three to ten times in the past four weeks) | 129 |
22.7%
|
| 3 | Often (more than ten times in the past four weeks) | 18 |
3.2%
|
| a | Not applicable | 0 | |
| b | Don't know | 0 | |
| c | Refused to respond | 0 |