Y \ X
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
13700
13699
13698
13697
13696
13695
13694
13693
13692
13691
13690
13689
13688
13687
13686
13685
13684
13683
13682
13681
13680