| Value | Category | Cases | |
|---|---|---|---|
| 1 | never | 313 |
15.2%
|
| 2 | this year | 1257 |
61%
|
| 3 | last year | 338 |
16.4%
|
| 4 | 2 years ago | 80 |
3.9%
|
| 5 | 3 years ago | 26 |
1.3%
|
| 6 | More than 3 years ago | 48 |
2.3%
|
| Sysmiss | 31 |