| Value | Category | Cases | |
|---|---|---|---|
| 0-3 months ago | 2 |
8.7%
|
|
| 3-6 months ago | 6 |
26.1%
|
|
| 6-12 months ago | 3 |
13%
|
|
| Don't know | 9 |
39.1%
|
|
| more than 2 years ago | 3 |
13%
|