| Value | Category | Cases | |
|---|---|---|---|
| 1 | Within the last 12 months | 38 |
0.6%
|
| 2 | 1-2 years ago | 21 |
0.3%
|
| 3 | 2-3 years ago | 22 |
0.3%
|
| 4 | More than 3 years ago | 69 |
1.1%
|
| 5 | Never | 6407 |
97.7%
|