| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 20 |
12.6%
|
| 2 | Monthly | 73 |
45.9%
|
| 3 | Less than once a month | 52 |
32.7%
|
| 4 | Never | 12 |
7.5%
|
| 5 | Don't know | 2 |
1.3%
|
| 6 | Refused | 0 |
0%
|
| Sysmiss | 841 |