| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never or hardly ever | 15808 |
18.7%
|
| 2 | Once or twice a month | 16129 |
19.1%
|
| 3 | Once or twice a week | 30940 |
36.6%
|
| 4 | Every or almost every day | 21739 |
25.7%
|
| 7 | N/A | 19643 | |
| 8 | Invalid | 117 | |
| 9 | Miss | 1911 |