| Value | Category | Cases | |
|---|---|---|---|
| 1 | More than once a day | 0 |
0%
|
| 2 | Once daily | 0 |
0%
|
| 3 | 5-6 days a week | 1 |
0.3%
|
| 4 | 3-4 days a week | 4 |
1.1%
|
| 5 | 1-2 times a week | 12 |
3.4%
|
| 6 | 2-3 times a month | 22 |
6.3%
|
| 7 | Once a month | 39 |
11.1%
|
| 8 | Less than once a month | 126 |
35.9%
|
| 9 | Never | 147 |
41.9%
|