Year | Value | 2023 | 72,773 | 2022 | 75,880 | 2021 | 77,980 | 2020 | 80,113 | 2019 | 80,050 | 2018 | 76,746 | 2017 | 72,640 | 2016 | 68,146 | 2015 | 63,981 | 2014 | 60,591 | 2013 | 57,653 | 2012 | 54,954 | 2011 | 52,333 | 2010 | 49,789 | 2009 | 47,340 | 2008 | 44,747 | 2007 | 42,300 | 2006 | 40,205 | 2005 | 38,192 | 2004 | 36,128 | 2003 | 34,620 | 2002 | 34,154 | 2001 | 34,208 | 2000 | 34,119 | 1999 | 34,223 | 1998 | 35,584 | 1997 | 37,673 | 1996 | 39,602 | 1995 | 40,916 | 1994 | 41,225 | 1993 | 41,077 | 1992 | 40,856 | 1991 | 40,639 | 1990 | 40,174 | 1989 | 39,061 | 1988 | 37,793 | 1987 | 37,116 | 1986 | 37,110 | 1985 | 37,100 | 1984 | 36,878 | 1983 | 36,551 | 1982 | 36,157 | 1981 | 35,242 | 1980 | 32,740 | 1979 | 29,412 | 1978 | 26,691 | 1977 | 24,855 | 1976 | 23,306 | 1975 | 22,034 | 1974 | 21,206 |
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