| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 44 |
13%
|
| 2 | Monthly | 124 |
36.6%
|
| 3 | Less than once a month | 154 |
45.4%
|
| 4 | Never | 14 |
4.1%
|
| 5 | Don't know | 2 |
0.6%
|
| 6 | Refused | 1 |
0.3%
|
| Sysmiss | 661 |