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
12670
12669
12668
12667
12666
12665
12664
12663
12662
12661
12660
12659
12658
12657
12656
12655
12654
12653
12652
12651
12650