Y \ X
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
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
12750
12749
12748
12747
12746
12745
12744
12743
12742
12741
12740
12739
12738
12737
12736
12735
12734
12733
12732
12731
12730