Value |
Category |
1 |
WEEKLY |
2 |
MONTHLY |
3 |
EVERY 3 MONTHS |
4 |
EVERY 6 MONTHS |
5 |
ONCE A YEAR |
6 |
OTHER |
98 |
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.