| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than two weeks | 213 |
21.3%
|
| 2 | About one month | 286 |
28.6%
|
| 3 | About two months | 228 |
22.8%
|
| 4 | More than two months | 232 |
23.2%
|
| 5 | Don't know | 40 |
4%
|
| 6 | Refused | 1 |
0.1%
|