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
15390
15389
15388
15387
15386
15385
15384
15383
15382
15381
15380
15379
15378
15377
15376
15375
15374
15373
15372
15371
15370