| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 635 |
79.7%
|
| 2 | Monthly | 83 |
10.4%
|
| 3 | Less than once a month | 73 |
9.2%
|
| 4 | Don't know | 4 |
0.5%
|
| 5 | Refused | 2 |
0.3%
|
| Sysmiss | 203 |