| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 50 |
22.7%
|
| 2 | Monthly | 129 |
58.6%
|
| 3 | Less than once a month | 38 |
17.3%
|
| 4 | Never | 2 |
0.9%
|
| 5 | Don't know | 1 |
0.5%
|
| 6 | Refused | 0 |
0%
|
| Sysmiss | 780 |