| Value | Category | Cases | |
|---|---|---|---|
| 1 | Within the last 12 months | 1326 |
5.3%
|
| 2 | 1 - 2 years ago | 719 |
2.9%
|
| 3 | 2 - 3 years ago | 685 |
2.7%
|
| 4 | More than 3 years ago | 2514 |
10%
|
| 5 | Never | 19916 |
79.2%
|