| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 21 |
10.6%
|
| 2 | Monthly | 83 |
41.7%
|
| 3 | Less than once a month | 81 |
40.7%
|
| 4 | Never | 11 |
5.5%
|
| 5 | Don't know | 2 |
1%
|
| 6 | Refused | 1 |
0.5%
|
| Sysmiss | 801 |