| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 12104 |
27.1%
|
| 2 | Monthly | 18646 |
41.8%
|
| 3 | Less than once a month | 9638 |
21.6%
|
| 4 | Never | 3142 |
7%
|
| 5 | Don't know | 666 |
1.5%
|
| 6 | Refused | 409 |
0.9%
|
| Sysmiss | 99485 |