| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than two weeks | 193 |
19.3%
|
| 2 | About one month | 249 |
24.9%
|
| 3 | About two months | 168 |
16.8%
|
| 4 | More than two months | 332 |
33.2%
|
| 5 | Don't know | 56 |
5.6%
|
| 6 | Refused | 2 |
0.2%
|