Y \ X
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
5440
5439
5438
5437
5436
5435
5434
5433
5432
5431
5430
5429
5428
5427
5426
5425
5424
5423
5422
5421
5420