| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 18 |
32.1%
|
| 2 | Monthly | 19 |
33.9%
|
| 3 | Less than once a month | 17 |
30.4%
|
| 4 | Don't know | 2 |
3.6%
|
| 5 | Refused | 0 |
0%
|
| Sysmiss | 945 |