| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 66 |
10%
|
| 2 | Monthly | 438 |
66.2%
|
| 3 | Less than once a month | 143 |
21.6%
|
| 4 | Never | 12 |
1.8%
|
| 5 | Don't know | 1 |
0.2%
|
| 6 | Refused | 2 |
0.3%
|
| Sysmiss | 338 |