Year current US$ 1995 -816111508.570146 1996 724246434.004586 1997 438921065.18909 1998 906447579.266532 1999 261354323.69588 2000 602879678.490599 2001 335250859.68739 2002 574794868.968112 2003 1025239018.46921 2004 1833432411.96454 2005 2723016453.07196 2006 3538629491.04193 2007 4273621271.16123 2008 4384594741.14826 2009 2191948198.08094 2010 2117564795.66073 2011 1847692442.50615 2012 946441579.347779 2013 2384859113.36854 2014 3164063539.69364 2015 5071114910.00095 2016 4732735575.90761 2017 6110775373.69173 2018 6848391985.27816 2019 6943704906.94158 2020 4013507129.03465 2021 5755755647.39863