Year current US$ 1990 -3972423650.5681815 1991 -10287336860.670195 1992 -3912146367.1463675 1993 520608878.22435516 1994 6789445974.90052 1995 8044816159.065804 1996 3737909516.3806553 1997 8816306483.300589 1998 11793640278.237827 1999 9726581459.310791 2000 10148282644.878195 2001 9147833597.236217 2002 11327937649.880096 2003 8791836734.693876 2004 7180519956.060051 2005 10274545454.545454 2006 15052437902.483902 2007 15388155262.104841 2008 -1599264705.8823528 2009 -28471724567.68967 2010 2955903974.877638 2011 5804779614.686788 2012 8225297792.5048275 2013 16497812073.040998 2014 35102781000.791306 2015 14490971682.341578 2016 802015068.3170791 2017 6302424228.534008 2018 5330973704.893368 2019 5286905166.7664795 2020 2929488769.3088927 2021 7836989036.024309 2022 8344614423.861478 2023 -17214829368.808968