Value |
Category |
1 |
Less than 1 month ago |
2 |
1-6 months ago |
3 |
7-12 months ago |
4 |
More than 12 months ago |
8 |
Don't know |
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.