| Value | Category | Cases | |
|---|---|---|---|
| 1 | Don’t know what it is | 23187 |
4.6%
|
| 2 | Never or almost never | 163165 |
32.5%
|
| 3 | Several times a month | 116709 |
23.2%
|
| 4 | Several times a week | 116902 |
23.3%
|
| 5 | Several times a day | 82799 |
16.5%
|
| 7 | N/A | 4154 | |
| 8 | Invalid | 1273 | |
| 9 | Miss | 7769 |