Year | Value | 2021 | 462.38381928 | 2020 | 294.3390446 | 2019 | 730.10423481997 | 2018 | 765.04731235365 | 2017 | 775.92925592654 | 2016 | 688.68083784124 | 2015 | 671.63879293968 | 2014 | 692.12605892206 | 2013 | 801.11403075158 | 2012 | 801.88500620382 | 2011 | 807.57800660024 | 2010 | 900.85980777836 | 2009 | 775.633 | 2008 | 849.324 | 2007 | 848.285 | 2006 | 964.051 | 2005 | 904.077 | 2004 | 831.251 | 2003 | 693.35 | 2002 | 703.265 | 2001 | 879.678 | 2000 | 836.818 | 1999 | 799.7999836206 | 1998 | 786.0999864638 | 1997 | 723.6000190974 | 1996 | 793.800005734 | 1995 | 809.599992931 | 1994 | 759.4000061155 | 1993 | 686.3999908565 | 1992 | 665.900007069 | 1991 | 592.9999877812 | 1990 | 613.1000024079 | 1989 | 621.4000120162 | 1988 | 630.0999889374 | 1987 | 560.099995613 | 1986 | 472.0000007749 | 1985 | 470.6999904216 | 1984 | 434.300005585 | 1983 | 378.6000054479 | 1982 | 362.1000064014 | 1981 | 355.9999988674 | 1980 | 323.5999948531 | 1979 | 274.3999967128 | 1978 | 254.3000041992 | 1977 | 206.6000054851 | 1976 | 189.8000055328 | 1975 | 171.3000030518 | 1974 | 136.4000018836 | 1973 | 111.9999983907 | 1972 | 80.5 | 1971 | 93.6000017226 | 1970 | 96.6999984979 |
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