| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 5237 |
11.7%
|
| 2 | Monthly | 26106 |
58.5%
|
| 3 | Less than once a month | 9158 |
20.5%
|
| 4 | Never | 3214 |
7.2%
|
| 5 | Don't know | 503 |
1.1%
|
| 6 | Refused | 387 |
0.9%
|
| Sysmiss | 99485 |