| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 133 |
2.4%
|
| 2 | Once a month | 20 |
0.4%
|
| 3 | 2-3 times a month | 36 |
0.6%
|
| 4 | Once a week | 84 |
1.5%
|
| 5 | 2-6 times a week | 426 |
7.6%
|
| 6 | Once a day | 4507 |
80.6%
|
| 7 | Twice or more a day | 387 |
6.9%
|