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
12710
12709
12708
12707
12706
12705
12704
12703
12702
12701
12700
12699
12698
12697
12696
12695
12694
12693
12692
12691
12690