| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 79 |
16.5%
|
| 2 | Monthly | 212 |
44.4%
|
| 3 | Less than once a month | 133 |
27.8%
|
| 4 | Never | 41 |
8.6%
|
| 5 | Don't know | 11 |
2.3%
|
| 6 | Refused | 2 |
0.4%
|
| Sysmiss | 522 |