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
7250
7249
7248
7247
7246
7245
7244
7243
7242
7241
7240
7239
7238
7237
7236
7235
7234
7233
7232
7231
7230