| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than two weeks | 120 |
12%
|
| 2 | About one month | 238 |
23.8%
|
| 3 | About two months | 150 |
15%
|
| 4 | More than two months | 364 |
36.4%
|
| 5 | Don't know | 123 |
12.3%
|
| 6 | Refused | 5 |
0.5%
|