Value |
Category |
1960 |
|
1965 |
|
1966 |
|
1967 |
|
1968 |
|
1970 |
|
1971 |
|
1972 |
|
1973 |
|
1974 |
|
1976 |
|
1977 |
|
1978 |
|
9998 |
no sabe |
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.