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
9160
9159
9158
9157
9156
9155
9154
9153
9152
9151
9150
9149
9148
9147
9146
9145
9144
9143
9142
9141
9140