| Value | Category | Cases | |
|---|---|---|---|
| 1 | Within the past year | 939 |
65.8%
|
| 2 | Between 1 - 2 years | 299 |
20.9%
|
| 3 | Between 2 - 4 years | 115 |
8.1%
|
| 4 | More than 4 years ago | 59 |
4.1%
|
| 8 | Don't know | 4 |
0.3%
|
| 9 | No response | 12 |
0.8%
|
| Sysmiss | 410 |