| Value | Category | Cases | |
|---|---|---|---|
| 1 | Don’t know what it is | 25232 |
5%
|
| 2 | Never or almost never | 102875 |
20.4%
|
| 3 | Several times a month | 108264 |
21.4%
|
| 4 | Several times a week | 158180 |
31.3%
|
| 5 | Several times a day | 110500 |
21.9%
|
| 7 | N/A | 4156 | |
| 8 | Invalid | 1071 | |
| 9 | Miss | 5680 |