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
13350
13349
13348
13347
13346
13345
13344
13343
13342
13341
13340
13339
13338
13337
13336
13335
13334
13333
13332
13331
13330