| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 14 |
7.4%
|
| 2 | Monthly | 86 |
45.5%
|
| 3 | Less than once a month | 73 |
38.6%
|
| 4 | Never | 14 |
7.4%
|
| 5 | Don't know | 2 |
1.1%
|
| 6 | Refused | 0 |
0%
|
| Sysmiss | 811 |