| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than two weeks | 247 |
24.7%
|
| 2 | About one month | 295 |
29.5%
|
| 3 | About two months | 124 |
12.4%
|
| 4 | More than two months | 210 |
21%
|
| 5 | Don't know | 113 |
11.3%
|
| 6 | Refused | 11 |
1.1%
|