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
9640
9639
9638
9637
9636
9635
9634
9633
9632
9631
9630
9629
9628
9627
9626
9625
9624
9623
9622
9621
9620