| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 67 |
11.3%
|
| 2 | Monthly | 150 |
25.2%
|
| 3 | Less than once a month | 319 |
53.6%
|
| 4 | Never | 45 |
7.6%
|
| 5 | Don't know | 12 |
2%
|
| 6 | Refused | 2 |
0.3%
|
| Sysmiss | 405 |