| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than two weeks | 243 |
24.3%
|
| 2 | About one month | 251 |
25.1%
|
| 3 | About two months | 186 |
18.6%
|
| 4 | More than two months | 278 |
27.8%
|
| 5 | Don't know | 37 |
3.7%
|
| 6 | Refused | 5 |
0.5%
|