| Value | Category | Cases | |
|---|---|---|---|
| Between 1 and 6 months | 31 |
0.7%
|
|
| Between 7 and 12 months | 84 |
1.8%
|
|
| Don't know | 188 |
4%
|
|
| Less than 1 month | 21 |
0.4%
|
|
| Other, specify | 78 |
1.7%
|
|
| Refused | 1 |
0%
|
|
| 4283 |
91.4%
|