| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 58 |
10.7%
|
| 2 | Monthly | 302 |
55.8%
|
| 3 | Less than once a month | 148 |
27.4%
|
| 4 | Never | 31 |
5.7%
|
| 5 | Don't know | 2 |
0.4%
|
| 6 | Refused | 0 |
0%
|
| Sysmiss | 459 |