| Value | Category | Cases | |
|---|---|---|---|
| 1 | Within the last 12 months | 1411 |
5.6%
|
| 2 | 1 - 2 years ago | 832 |
3.3%
|
| 3 | 2 - 3 years ago | 805 |
3.2%
|
| 4 | More than 3 years ago | 2421 |
9.6%
|
| 5 | Never | 19639 |
78.2%
|