| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than two weeks | 252 |
25.2%
|
| 2 | About one month | 247 |
24.7%
|
| 3 | About two months | 183 |
18.3%
|
| 4 | More than two months | 282 |
28.2%
|
| 5 | Don't know | 32 |
3.2%
|
| 6 | Refused | 4 |
0.4%
|