| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than two weeks | 228 |
20.2%
|
| 2 | About one month | 412 |
36.5%
|
| 3 | About two months | 209 |
18.5%
|
| 4 | More than two months | 220 |
19.5%
|
| 5 | Don't know | 47 |
4.2%
|
| 6 | Refused | 14 |
1.2%
|