| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never or hardly ever | 16258 |
19.2%
|
| 2 | Once or twice a month | 22684 |
26.7%
|
| 3 | Once or twice a week | 27934 |
32.9%
|
| 4 | Every or almost every day | 18015 |
21.2%
|
| 7 | N/A | 19647 | |
| 8 | Invalid | 74 | |
| 9 | Miss | 1675 |