| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 48 |
8.9%
|
| 2 | Monthly | 234 |
43.3%
|
| 3 | Less than once a month | 189 |
34.9%
|
| 4 | Never | 68 |
12.6%
|
| 5 | Don't know | 2 |
0.4%
|
| 6 | Refused | 0 |
0%
|
| Sysmiss | 459 |