| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 131 |
32.7%
|
| 2 | Monthly | 124 |
30.9%
|
| 3 | Less than once a month | 131 |
32.7%
|
| 4 | Don't know | 13 |
3.2%
|
| 5 | Refused | 2 |
0.5%
|
| Sysmiss | 599 |