| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 73 |
17.6%
|
| 2 | Monthly | 171 |
41.2%
|
| 3 | Less than once a month | 138 |
33.3%
|
| 4 | Never | 30 |
7.2%
|
| 5 | Don't know | 2 |
0.5%
|
| 6 | Refused | 1 |
0.2%
|
| Sysmiss | 585 |