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
14180
14179
14178
14177
14176
14175
14174
14173
14172
14171
14170
14169
14168
14167
14166
14165
14164
14163
14162
14161
14160