| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never or hardly ever | 2166 |
2.5%
|
| 2 | Once or twice a month | 6515 |
7.7%
|
| 3 | Once or twice a week | 22192 |
26.1%
|
| 4 | Every or almost every day | 54204 |
63.7%
|
| 7 | N/A | 19647 | |
| 8 | Invalid | 137 | |
| 9 | Miss | 1426 |