| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 35 |
12.1%
|
| 2 | Monthly | 171 |
59.2%
|
| 3 | Less than once a month | 40 |
13.8%
|
| 4 | Never | 42 |
14.5%
|
| 5 | Don't know | 1 |
0.3%
|
| 6 | Refused | 0 |
0%
|
| Sysmiss | 711 |