| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never or hardly ever | 9377 |
11.1%
|
| 2 | Once or twice a month | 17202 |
20.3%
|
| 3 | Once or twice a week | 31065 |
36.6%
|
| 4 | Every or almost every day | 27157 |
32%
|
| 7 | N/A | 19643 | |
| 8 | Invalid | 154 | |
| 9 | Miss | 1689 |