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
12620
12619
12618
12617
12616
12615
12614
12613
12612
12611
12610
12609
12608
12607
12606
12605
12604
12603
12602
12601
12600