| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 3931 |
15%
|
| 2 | Monthly | 12086 |
46.2%
|
| 3 | Less than once a month | 9050 |
34.6%
|
| 4 | Don't know | 808 |
3.1%
|
| 5 | Refused | 293 |
1.1%
|
| Sysmiss | 117922 |