| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 22 |
6.5%
|
| 2 | Monthly | 139 |
41.2%
|
| 3 | Less than once a month | 110 |
32.6%
|
| 4 | Never | 28 |
8.3%
|
| 5 | Don't know | 37 |
11%
|
| 6 | Refused | 1 |
0.3%
|
| Sysmiss | 671 |