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
4260
4259
4258
4257
4256
4255
4254
4253
4252
4251
4250
4249
4248
4247
4246
4245
4244
4243
4242
4241
4240