| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every month | 554 |
11.6%
|
| 2 | No months | 3105 |
65%
|
| 3 | Number of months | 614 |
12.9%
|
| 8 | Don't know | 481 |
10.1%
|
| 9 | Refused | 22 |
0.5%
|