| Value | Category | Cases | |
|---|---|---|---|
| 1 | never | 235 |
16.4%
|
| 2 | this year | 914 |
63.8%
|
| 3 | last year | 197 |
13.7%
|
| 4 | 2 years ago | 43 |
3%
|
| 5 | 3 years ago | 25 |
1.7%
|
| 6 | More than 3 years ago | 19 |
1.3%
|
| Sysmiss | 23 |