| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than two weeks | 216 |
21.6%
|
| 2 | About one month | 328 |
32.8%
|
| 3 | About two months | 165 |
16.5%
|
| 4 | More than two months | 226 |
22.6%
|
| 5 | Don't know | 57 |
5.7%
|
| 6 | Refused | 8 |
0.8%
|