| Value | Category | Cases | |
|---|---|---|---|
| 1 | never | 8200 |
84.6%
|
| 2 | once or less than than once a month | 483 |
5%
|
| 3 | every other month | 253 |
2.6%
|
| 4 | every month | 241 |
2.5%
|
| 5 | every week | 229 |
2.4%
|
| 6 | everyday | 288 |
3%
|
| Sysmiss | 9585 |