| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never or hardly ever | 2015 |
2.4%
|
| 2 | Once or twice a month | 8583 |
10.1%
|
| 3 | Once or twice a week | 20831 |
24.4%
|
| 4 | Every or almost every day | 53940 |
63.2%
|
| 7 | N/A | 19647 | |
| 8 | Invalid | 104 | |
| 9 | Miss | 1167 |