| Value | Category | Cases | |
|---|---|---|---|
| 1 | once a week | 56 |
16%
|
| 2 | every two weeks | 8 |
2.3%
|
| 3 | once a month | 58 |
16.6%
|
| 4 | every three months | 6 |
1.7%
|
| 5 | every six months | 4 |
1.1%
|
| 6 | once a year | 123 |
35.1%
|
| 7 | less than once a year | 95 |
27.1%
|
| 8 | more than once a week | 0 |
0%
|