| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 21 |
13.2%
|
| 2 | Monthly | 25 |
15.7%
|
| 3 | Less than once a month | 98 |
61.6%
|
| 4 | Never | 13 |
8.2%
|
| 5 | Don't know | 2 |
1.3%
|
| 6 | Refused | 0 |
0%
|
| Sysmiss | 841 |