Year current US$ 1990 9740283926.15371 1991 7119424007.40671 1992 8373917761.57601 1993 8407566877.69681 1994 9840801451.21147 1995 12493293141.9778 1996 13644032829.619 1997 13301754650.0549 1998 14266322196.0961 1999 14127518134.5369 2000 13553315800.0655 2001 14564948193.1641 2002 17315279210.2732 2003 21157042074.1492 2004 24485638014.612 2005 27153864783.4257 2006 30389190808.2239 2007 36743472103.8483 2008 46617852944.3011 2009 43180454291.8387 2010 43762753134.4894 2011 48202137018.9287 2012 44403677699.6519 2013 45441108464.8418 2014 44445911118.1147 2015 38913969199.7259 2016 40436308096.1859 2017 43738553234.5845 2018 49410037618.6593 2019 50298073680.3573 2020 52937215229.1552 2021 60090920984.9871