Year | Value | 2021 | 486.33798234543 | 2020 | 455.8767589488 | 2019 | 513.19657784034 | 2018 | 527.84353459595 | 2017 | 472.59415206713 | 2016 | 521.89961545528 | 2015 | 598.270584412 | 2014 | 774.06430054525 | 2013 | 712.28619980553 | 2012 | 701.45507021449 | 2011 | 697.35805026559 | 2010 | 658.04163690806 | 2009 | 598.52966224915 | 2008 | 518.2184237576 | 2007 | 466.53327943963 | 2006 | 392.90542025188 | 2005 | 358.79177849646 | 2004 | 231.19896343076 | 2003 | 196.34510552169 | 2002 | 185.2337936431 | 2001 | 173.41223995802 | 2000 | 141.17840938059 | 1999 | 166.18283041091 | 1998 | 191.35399122344 | 1997 | 171.81173785233 | 1996 | 184.89308553295 | 1995 | 172.02814098023 | 1994 | 149.2915318297 | 1993 | 192.27564187081 | 1992 | 265.55495553883 | 1991 | 276.40894856439 | 1990 | 260.80160943765 | 1989 | 222.7858109031 | 1988 | 238.4527417433 | 1987 | 190.06290330124 | 1986 | 179.23472631561 | 1985 | 184.83912671653 | 1984 | 159.84911965302 | 1983 | 143.02770944398 | 1982 | 140.40456969369 | 1981 | 160.79723382648 | 1980 | 193.71028107797 |
|