Value |
Category |
-999 |
-999 |
-888 |
-888 |
1 |
Weekly |
2 |
Bi-weekly |
3 |
Monthly |
4 |
Bi-Monthly |
5 |
Quarterly |
6 |
Yearly |
7 |
Other |
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.