Value |
Category |
-98 |
Could not observe |
-97 |
refused to show |
-95 |
|
0 |
Don't have card |
1 |
Light blue |
2 |
white |
3 |
yellow |
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.