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
13370
13369
13368
13367
13366
13365
13364
13363
13362
13361
13360
13359
13358
13357
13356
13355
13354
13353
13352
13351
13350