Y \ X
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
8730
8729
8728
8727
8726
8725
8724
8723
8722
8721
8720
8719
8718
8717
8716
8715
8714
8713
8712
8711
8710