| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 7 |
7.9%
|
| 2 | Monthly | 38 |
42.7%
|
| 3 | Less than once a month | 25 |
28.1%
|
| 4 | Never | 17 |
19.1%
|
| 5 | Don't know | 2 |
2.2%
|
| 6 | Refused | 0 |
0%
|
| Sysmiss | 912 |