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
10220
10219
10218
10217
10216
10215
10214
10213
10212
10211
10210
10209
10208
10207
10206
10205
10204
10203
10202
10201
10200