| Value |
Category |
| 1 |
Never |
| 2 |
During the last 12 months |
| 3 |
More than 12 months ago |
| 8 |
Don抰 know or don抰 remember |
| 9 |
Missing |
| Sysmiss |
|
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.