| Value | Category | Cases | |
|---|---|---|---|
| 1 | At least once a day | 9502 |
39.4%
|
| 2 | At least once a week | 6504 |
26.9%
|
| 3 | At least once a month | 2710 |
11.2%
|
| 4 | Less than once a month | 1859 |
7.7%
|
| 5 | Never | 3234 |
13.4%
|
| 9 | Unspecified | 336 |
1.4%
|