| Value | Category | Cases | |
|---|---|---|---|
| 1 | during last year | 1931 |
39.8%
|
| 2 | from 1 to 5 years | 2166 |
44.7%
|
| 3 | more than 5 years | 721 |
14.9%
|
| 8 | don't remember | 32 |
0.7%
|
| Sysmiss | 8065 |