| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than two weeks | 147 |
14.7%
|
| 2 | About one month | 227 |
22.7%
|
| 3 | About two months | 179 |
17.9%
|
| 4 | More than two months | 270 |
27%
|
| 5 | Don't know | 160 |
16%
|
| 6 | Refused | 17 |
1.7%
|