| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 33 |
4.2%
|
| 2 | Monthly | 657 |
83.2%
|
| 3 | Less than once a month | 61 |
7.7%
|
| 4 | Never | 8 |
1%
|
| 5 | Don't know | 10 |
1.3%
|
| 6 | Refused | 21 |
2.7%
|
| Sysmiss | 210 |