| Value | Category | Cases | |
|---|---|---|---|
| 1 | Within the last 12 months | 405 |
1.6%
|
| 2 | 1 - 2 years ago | 351 |
1.4%
|
| 3 | 2 - 3 years ago | 489 |
1.9%
|
| 4 | More than 3 years ago | 1720 |
6.7%
|
| 5 | Never | 22619 |
88.4%
|