| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than two weeks | 150 |
15%
|
| 2 | About one month | 294 |
29.4%
|
| 3 | About two months | 172 |
17.2%
|
| 4 | More than two months | 366 |
36.6%
|
| 5 | Don't know | 15 |
1.5%
|
| 6 | Refused | 3 |
0.3%
|