| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than two weeks | 114 |
11.4%
|
| 2 | About one month | 289 |
28.9%
|
| 3 | About two months | 181 |
18.1%
|
| 4 | More than two months | 276 |
27.6%
|
| 5 | Don't know | 88 |
8.8%
|
| 6 | Refused | 52 |
5.2%
|