| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than two weeks | 128 |
12.8%
|
| 2 | About one month | 264 |
26.4%
|
| 3 | About two months | 161 |
16.1%
|
| 4 | More than two months | 289 |
28.9%
|
| 5 | Don't know | 132 |
13.2%
|
| 6 | Refused | 26 |
2.6%
|