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
15360
15359
15358
15357
15356
15355
15354
15353
15352
15351
15350
15349
15348
15347
15346
15345
15344
15343
15342
15341
15340