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
9420
9419
9418
9417
9416
9415
9414
9413
9412
9411
9410
9409
9408
9407
9406
9405
9404
9403
9402
9401
9400