| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than two weeks | 261 |
26.1%
|
| 2 | About one month | 265 |
26.5%
|
| 3 | About two months | 163 |
16.3%
|
| 4 | More than two months | 295 |
29.5%
|
| 5 | Don't know | 16 |
1.6%
|
| 6 | Refused | 0 |
0%
|