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
11510
11509
11508
11507
11506
11505
11504
11503
11502
11501
11500
11499
11498
11497
11496
11495
11494
11493
11492
11491
11490