| Value | Category | Cases | |
|---|---|---|---|
| 1 | Within the last 12 months | 441 |
1.8%
|
| 2 | 1 - 2 years ago | 325 |
1.3%
|
| 3 | 2 - 3 years ago | 337 |
1.3%
|
| 4 | More than 3 years ago | 1600 |
6.4%
|
| 5 | Never | 22405 |
89.2%
|