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
10880
10879
10878
10877
10876
10875
10874
10873
10872
10871
10870
10869
10868
10867
10866
10865
10864
10863
10862
10861
10860