| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 59 |
12.3%
|
| 2 | Monthly | 246 |
51.1%
|
| 3 | Less than once a month | 153 |
31.8%
|
| 4 | Don't know | 20 |
4.2%
|
| 5 | Refused | 3 |
0.6%
|
| Sysmiss | 519 |