v. 1968 36
v. 1969 87
v. 1970 123
v. 1971 151
v. 1972 175
v. 1973 192
v. 1974 202
v. 1975 212
v. 1976 336
v. 1977 576
v. 1978 702
v. 1979 838
v. 1980 1033
v. 1981 1349
v. 1982 1572
v. 1983 1852
v. 1984 2070
v. 1985 2306
v. 1986 2431
v. 1987 2841
v. 1988 2611
v. 1989 3078
v. 1990 3805
v. 1991 4255
v. 1992 5099
v. 1993 5626
v. 1994 5943
v. 1995 6604
v. 1996 7436
v. 1997 8101
v. 1998 9120
v. 1999 9457
v. 2000 9525
v. 2001 10069
v. 2002 10172
v. 2003 10224
v. 2004 9475
v. 2005 8900
v. 2006 8526
v. 2007 8452
v. 2008 7955
v. 2009 7352
v. 2010 7310
v. 2011 6539
v. 2012 5828
v. 2013 5546
v. 2014 5242
v. 2015 4903
v. 2016 4048