| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 188 |
34.9%
|
| 2 | Monthly | 146 |
27.1%
|
| 3 | Once a year | 127 |
23.6%
|
| 4 | Less than once a year | 51 |
9.5%
|
| 5 | Never | 27 |
5%
|
| Sysmiss | 1932 |