| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every month | 68 |
1.4%
|
| 2 | No months | 3296 |
69%
|
| 3 | Number of months | 592 |
12.4%
|
| 8 | Don't know | 798 |
16.7%
|
| 9 | Refused | 22 |
0.5%
|