| Value | Category | Cases | |
|---|---|---|---|
| 1 | daily | 20590 |
36.4%
|
| 2 | not daily but at least once in a week | 14224 |
25.2%
|
| 3 | not even once in a week | 11925 |
21.1%
|
| 4 | not known | 9802 |
17.3%
|