| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than two weeks | 108 |
10.8%
|
| 2 | About one month | 231 |
23.1%
|
| 3 | About two months | 176 |
17.6%
|
| 4 | More than two months | 387 |
38.7%
|
| 5 | Don't know | 94 |
9.4%
|
| 6 | Refused | 4 |
0.4%
|