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
15340
15339
15338
15337
15336
15335
15334
15333
15332
15331
15330
15329
15328
15327
15326
15325
15324
15323
15322
15321
15320