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
13560
13559
13558
13557
13556
13555
13554
13553
13552
13551
13550
13549
13548
13547
13546
13545
13544
13543
13542
13541
13540