1978 (1) 1979 (2) 1980 (3) 1981 (3) 1982 (11) 1983 (24) 1984 (32) 1985 (43) 1986 (62) 1987 (70) 1988 (75) 1989 (78) 1990 (91) 1991 (98) 1992 (100) 1993 (101) 1994 (102) 1995 (103) 1996 (111) 1998 (132) 1999 (134) 2000 (158) 2001 (171) 2002 (173) 2003 (198) 2004 (208) 2005 (209) 2006 (204) 2007 (205) 2008 (186) 2009 (174) 2010 (147) 2011 (133) 2012 (138) 2013 (122) 2014 (113) 2015 (100) 2016 (81) 2017 (58) 2018 (53) 2019 (46) 2020 (42) 2021 (37) 2022 (32) 2023 (4)