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.