| Value | Category | Cases | |
|---|---|---|---|
| 0-3 months ago | 17 |
11.6%
|
|
| 3-6 months ago | 23 |
15.6%
|
|
| 6-12 months ago | 35 |
23.8%
|
|
| I don't know | 12 |
8.2%
|
|
| Many years ago/I can't remember | 22 |
15%
|
|
| More than one year ago | 38 |
25.9%
|