1964
1
1965
1 2
3 4
1966
1
2
3 4
1967
1
2
3 4
1968
1
2
3 4
1969
1
2
3 4
1970
1
2
3 4
1971
1
2
3
4
1972
1
2
3
4
1973
1
2
3
4
1974
1
2
3
4
1975
1
2
3
4
1976
1
2
3
4
1977
1
2
3
4
1978
1
2
3
4
1979
1
2
3
4
1980
1
2
3
4
1981
1
2
3
4
1982
1
2
3
4
1983
1
2
3
4
1984
1
2
3
4
1985
1
2
3
4
1986
1
2
3
4
1987
1
2
3
4
1988
1
2
3
4
1989
1
2
3
4
1990
1
2
3 4
