Year current US$ 1980 8664685.86832895 1981 11644796.4696621 1982 11452660.0050484 1983 12513689.5043095 1984 15524503.4451008 1985 17733434.9257088 1986 20225638.5880359 1987 21637456.2934074 1988 22875358.8559443 1989 25197224.4642213 1990 28086442.4738359 1991 28784462.4521972 1992 30197048.3393001 1993 29325061.3168704 1994 31761208.1511398 1995 30956903.2309732 1996 28318144.40457 1997 34057507.8078395 1998 40112879.9871237 1999 45754938.0418177 2000 48173465.7664112 2001 59202833.3147346 2002 63393467.5676062 2003 63818695.7544955 2004 66300681.10107 2005 76470330.1899734 2006 128251571.670032 2007 121389530.019092 2008 141039994.900852 2009 152464777.118655 2010 227477391.121954 2011 222026839.907828 2012 256676207.518314 2013 343260723.040188 2014 276330253.237858 2015 329409646.72143 2016 331312971.431593 2017 376280573.231574 2018 334165690.878783 2019 344072043.133576 2020 242353276.897473 2021 262868968.146643