| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than two weeks | 140 |
14%
|
| 2 | About one month | 313 |
31.3%
|
| 3 | About two months | 139 |
13.9%
|
| 4 | More than two months | 247 |
24.7%
|
| 5 | Don't know | 152 |
15.2%
|
| 6 | Refused | 9 |
0.9%
|