| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every week | 54 |
8.5%
|
| 2 | Every two weeks | 34 |
5.4%
|
| 3 | Every month | 220 |
34.7%
|
| 4 | Every three months | 73 |
11.5%
|
| 5 | Every six months | 19 |
3%
|
| 6 | Every year | 27 |
4.3%
|
| 7 | One off | 207 |
32.6%
|
| 9 | Refusal | 0 |
0%
|
| Sysmiss | 2723 |