Y \ X
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
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
12820
12819
12818
12817
12816
12815
12814
12813
12812
12811
12810
12809
12808
12807
12806
12805
12804
12803
12802
12801
12800