| Value | Category | Cases | |
|---|---|---|---|
| 1 | Within past 2 years | 3 |
1.4%
|
| 2 | Within past 3-5 years | 20 |
9.6%
|
| 3 | 6-10 years ago | 24 |
11.5%
|
| 4 | 11-15 years ago | 16 |
7.7%
|
| 5 | More than 15 years ago | 145 |
69.7%
|
| -4 | Not asked | 0 | |
| -3 | Not applicable (Born in this country) | 975 | |
| -2 | NA | 18 | |
| -1 | DK | 0 |