By year
- 2021 [15]
- 2020 [115]
- 2019 [129]
- 2018 [109]
- 2017 [99]
- 2016 [109]
- 2015 [105]
- 2014 [94]
- 2013 [89]
- 2012 [122]
- 2011 [83]
- 2010 [86]
- 2009 [84]
- 2008 [63]
- 2007 [73]
- 2006 [93]
- 2005 [83]
- 2004 [101]
- 2003 [95]
- 2002 [63]
- 2001 [56]
- 2000 [40]
- 1999 [61]
- 1998 [41]
- 1997 [60]
- 1996 [52]
- 1995 [57]
- 1994 [73]
- 1993 [83]
- 1992 [83]
- 1991 [66]
- 1990 [54]
- 1989 [47]
- 1988 [45]
- 1987 [30]
- 1986 [37]
- 1985 [23]
- 1984 [27]
- 1983 [10]
- 1982 [12]
- 1981 [8]
- 1980 [5]
- 1979 [5]
- 1978 [4]
- 1977 [2]
- 1975 [1]