Year current US$ 1977 280000.001192093 1980 1580000.04291534 1981 1220000.02861023 1982 920000.016689301 1983 560000.002384186 1984 540000.021457672 1985 519999.980926514 1986 330000.013113022 1987 319999.99284744303 1988 430000.00715255697 1989 620000.004768372 1990 899999.976158142 1991 850000.023841858 1992 370000.00476837205 1993 469999.998807907 1994 1000000 1995 779999.971389771 1996 1120000.00476837 1997 1139999.98569489 1998 150000.005960464 1999 589999.973773956 2000 439999.997615814 2001 850000.023841858 2002 769999.980926514 2003 340000.00357627904 2004 870000.004768372 2005 610000.014305115 2006 1110000.01430511 2007 689999.997615814 2008 449999.988079071 2009 720000.028610229 2010 750000 2011 709999.978542328 2012 1706575.98972321 2013 627072.989940643 2014 950607.001781464 2015 929083.824157715 2016 869803.488254547 2017 547239.363193512 2018 644729.971885681 2019 1037846.20761871 2020 1108459.94949341 2021 1017603.6357879601 2022 1532230.0195694