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
10320
10319
10318
10317
10316
10315
10314
10313
10312
10311
10310
10309
10308
10307
10306
10305
10304
10303
10302
10301
10300