| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 16 |
14.7%
|
| 2 | Monthly | 22 |
20.2%
|
| 3 | Less than once a month | 69 |
63.3%
|
| 4 | Don't know | 2 |
1.8%
|
| 5 | Refused | 0 |
0%
|
| Sysmiss | 891 |