| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 35 |
27.6%
|
| 2 | Monthly | 20 |
15.7%
|
| 3 | Less than once a month | 72 |
56.7%
|
| 4 | Don't know | 0 |
0%
|
| 5 | Refused | 0 |
0%
|
| Sysmiss | 873 |