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
10860
10859
10858
10857
10856
10855
10854
10853
10852
10851
10850
10849
10848
10847
10846
10845
10844
10843
10842
10841
10840