Y \ X
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
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
12790
12789
12788
12787
12786
12785
12784
12783
12782
12781
12780
12779
12778
12777
12776
12775
12774
12773
12772
12771
12770