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
15140
15139
15138
15137
15136
15135
15134
15133
15132
15131
15130
15129
15128
15127
15126
15125
15124
15123
15122
15121
15120