| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than two weeks | 139 |
13.9%
|
| 2 | About one month | 353 |
35.3%
|
| 3 | About two months | 229 |
22.9%
|
| 4 | More than two months | 258 |
25.8%
|
| 5 | Don't know | 20 |
2%
|
| 6 | Refused | 1 |
0.1%
|