| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 92 |
20.4%
|
| 2 | Monthly | 117 |
25.9%
|
| 3 | Less than once a month | 220 |
48.7%
|
| 4 | Never | 21 |
4.6%
|
| 5 | Don't know | 1 |
0.2%
|
| 6 | Refused | 1 |
0.2%
|
| Sysmiss | 548 |