Value |
Category |
1 |
1897-1939 |
2 |
1940-1949 |
3 |
1950-1959 |
4 |
1960-1969 |
5 |
1970-1979 |
6 |
1980-1988 |
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.