| Value | Category | Cases | |
|---|---|---|---|
| 1 | At least once a day | 6928 |
32.4%
|
| 2 | At least once a week | 5744 |
26.9%
|
| 3 | At least once a month | 2783 |
13%
|
| 4 | More than once a month | 1541 |
7.2%
|
| 5 | Never | 4182 |
19.6%
|
| 9 | Unspecified | 196 |
0.9%
|