| Value | Category | Cases | |
|---|---|---|---|
| 1 | More than once a day | 4 |
1.1%
|
| 2 | Once daily | 4 |
1.1%
|
| 3 | 5-6 days a week | 6 |
1.7%
|
| 4 | 3-4 days a week | 11 |
3.1%
|
| 5 | 1-2 times a week | 27 |
7.7%
|
| 6 | 2-3 times a month | 17 |
4.8%
|
| 7 | Once a month | 41 |
11.7%
|
| 8 | Less than once a month | 53 |
15.1%
|
| 9 | Never | 188 |
53.6%
|