| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 324 |
36.9%
|
| 2 | Monthly | 382 |
43.5%
|
| 3 | Less than once a month | 156 |
17.7%
|
| 4 | Never | 8 |
0.9%
|
| 5 | Don't know | 4 |
0.5%
|
| 6 | Refused | 5 |
0.6%
|
| Sysmiss | 121 |