Y \ X
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
15090
15089
15088
15087
15086
15085
15084
15083
15082
15081
15080
15079
15078
15077
15076
15075
15074
15073
15072
15071
15070