| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than two weeks | 239 |
23.9%
|
| 2 | About one month | 326 |
32.6%
|
| 3 | About two months | 181 |
18.1%
|
| 4 | More than two months | 225 |
22.5%
|
| 5 | Don't know | 28 |
2.8%
|
| 6 | Refused | 1 |
0.1%
|