| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 10 |
7.7%
|
| 2 | Monthly | 34 |
26.2%
|
| 3 | Less than once a month | 76 |
58.5%
|
| 4 | Never | 6 |
4.6%
|
| 5 | Don't know | 4 |
3.1%
|
| 6 | Refused | 0 |
0%
|
| Sysmiss | 870 |