Year | Value | 2021 | 46,301.698976785 | 2020 | 38,565.487759912 | 2019 | 50,866.95241632 | 2018 | 49,414.547568179 | 2017 | 46,033.598057513 | 2016 | 40,860.503474178 | 2015 | 38,507.004898664 | 2014 | 36,538.759268933 | 2013 | 33,962.309819546 | 2012 | 32,301.577021044 | 2011 | 33,001.439219448 | 2010 | 33,043.229290264 | 2009 | 26,787.928 | 2008 | 24,428.913 | 2007 | 23,289.039 | 2006 | 20,185.949 | 2005 | 19,269.673 | 2004 | 18,620.811 | 2003 | 15,750.709 | 2002 | 14,569.845 | 2001 | 13,381.285 | 2000 | 13,735.989 | 1999 | 12,024.999907762 | 1998 | 11,042.299897939 | 1997 | 11,010.900088064 | 1996 | 9,487.9999803229 | 1995 | 9,167.9000399933 | 1994 | 8,763.0999064147 | 1993 | 7,924.9000887648 | 1992 | 6,406.3000848663 | 1991 | 5,571.4999367668 | 1990 | 5,125.5000220312 | 1989 | 4,688.5000329092 | 1988 | 4,576.4999805018 | 1987 | 4,335.5000068694 | 1986 | 3,904.6000352651 | 1985 | 3,555.1000258475 | 1984 | 3,383.8000453565 | 1983 | 2,844.2999726384 | 1982 | 2,762.4000383468 | 1981 | 2,489.1000274494 | 1980 | 2,181.9000047815 | 1979 | 1,949.9000060335 | 1978 | 1,813.1999846845 | 1977 | 1,522.899985105 | 1976 | 1,356.8000200317 | 1975 | 1,222.4999973328 | 1974 | 1,118.4000100867 |
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