Value |
Category |
4000 |
|
5000 |
|
8000 |
|
15000 |
|
20000 |
|
25000 |
|
z |
Not applicable |
d |
Inconsistency set to missing |
a |
Don't know |
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.