Value |
Category |
1 |
less than 1 year ago |
2 |
1-2 years ago |
3 |
3-5 years ago |
4 |
more than 5 years ago |
77 |
don't know |
88 |
refused |
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.