| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than two weeks | 209 |
20.8%
|
| 2 | About one month | 244 |
24.2%
|
| 3 | About two months | 208 |
20.7%
|
| 4 | More than two months | 239 |
23.7%
|
| 5 | Don't know | 105 |
10.4%
|
| 6 | Refused | 2 |
0.2%
|