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
14650
14649
14648
14647
14646
14645
14644
14643
14642
14641
14640
14639
14638
14637
14636
14635
14634
14633
14632
14631
14630