| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 2205 |
79%
|
| 2 | During last 3 months | 215 |
7.7%
|
| 3 | During last 6 months | 46 |
1.6%
|
| 4 | During last year | 97 |
3.5%
|
| 5 | More than one year ago | 229 |
8.2%
|
| Sysmiss | 7 |