| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 8 |
29.6%
|
| 2 | Monthly | 10 |
37%
|
| 3 | Less than once a month | 9 |
33.3%
|
| 4 | Don't know | 0 |
0%
|
| 5 | Refused | 0 |
0%
|
| Sysmiss | 973 |