| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 18 |
10.7%
|
| 2 | Monthly | 76 |
45.2%
|
| 3 | Less than once a month | 65 |
38.7%
|
| 4 | Don't know | 8 |
4.8%
|
| 5 | Refused | 1 |
0.6%
|
| Sysmiss | 832 |