| Value | Category | Cases | |
|---|---|---|---|
| 2 | every two weeks | 12 |
0.7%
|
| 3 | irregularly | 11 |
0.7%
|
| 4 | more than once a week | 204 |
12.6%
|
| 5 | never | 8 |
0.5%
|
| 6 | once a mopnth | 6 |
0.4%
|
| 7 | once a week | 1379 |
85.1%
|
| Sysmiss | 996 |