| Value | Category | Cases | |
|---|---|---|---|
| 1 | Once a week or more | 1 |
0.4%
|
| 2 | Once a month or more | 256 |
95.5%
|
| 3 | Every few months | 8 |
3%
|
| 4 | Other (specify) | 3 |
1.1%
|
| Sysmiss | 159 |