| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 160 |
3.8%
|
| 2 | Once a month | 61 |
1.5%
|
| 3 | 2-3 times a month | 45 |
1.1%
|
| 4 | Once a week | 102 |
2.4%
|
| 5 | 2-6 times a week | 204 |
4.9%
|
| 6 | Once a day | 2212 |
52.6%
|
| 7 | Twice or more a day | 1420 |
33.8%
|