Value |
Category |
98 |
nr |
1960 |
|
1961 |
|
1963 |
|
1964 |
|
1965 |
|
1966 |
|
1967 |
|
1968 |
|
1969 |
|
1970 |
|
1972 |
|
1973 |
|
1974 |
|
1975 |
|
1976 |
|
9898 |
|
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.