| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 23 |
2.6%
|
| 2 | Monthly | 768 |
85.7%
|
| 3 | Less than once a month | 72 |
8%
|
| 4 | Never | 30 |
3.3%
|
| 5 | Don't know | 1 |
0.1%
|
| 6 | Refused | 2 |
0.2%
|
| Sysmiss | 104 |