Y \ X
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2340
2339
2338
2337
2336
2335
2334
2333
2332
2331
2330
2329
2328
2327
2326
2325
2324
2323
2322
2321
2320