| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 155 |
17.7%
|
| 2 | Monthly | 485 |
55.3%
|
| 3 | Less than once a month | 145 |
16.5%
|
| 4 | Never | 63 |
7.2%
|
| 5 | Don't know | 7 |
0.8%
|
| 6 | Refused | 22 |
2.5%
|
| Sysmiss | 123 |