Value |
Category |
-99 |
-99 Don't know |
-98 |
-98 Refuse to answer |
1 |
1 Day |
2 |
2 Week |
3 |
3 Every two weeks |
4 |
4 Month |
5 |
5 Year |
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.