Value |
Category |
-9 |
Do not know |
0 |
|
95 |
Refused |
555 |
More than 20 |
999 |
N/A |
7500 |
|
9996 |
Through shipment |
400000 |
|
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.