| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 2656 |
95.2%
|
| 2 | During last 3 months | 33 |
1.2%
|
| 3 | During last 6 months | 13 |
0.5%
|
| 4 | During last year | 26 |
0.9%
|
| 5 | More than one year ago | 61 |
2.2%
|
| Sysmiss | 10 |