Value |
Category |
1 |
less than 100 meters |
2 |
100-200 meters |
3 |
200-500 meters |
4 |
500-1000 meters |
5 |
more than 1000 meters |
9 |
n/a |
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.