| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 72 |
22.3%
|
| 2 | Monthly | 56 |
17.3%
|
| 3 | Less than once a month | 179 |
55.4%
|
| 4 | Never | 14 |
4.3%
|
| 5 | Don't know | 2 |
0.6%
|
| 6 | Refused | 0 |
0%
|
| Sysmiss | 677 |