| Value | Category | Cases | |
|---|---|---|---|
| 1 | never | 213 |
15.3%
|
| 2 | this year | 849 |
60.8%
|
| 3 | last year | 240 |
17.2%
|
| 4 | 2 years ago | 37 |
2.7%
|
| 5 | 3 years ago | 28 |
2%
|
| 6 | More than 3 years ago | 29 |
2.1%
|
| Sysmiss | 18 |