Year current US$ 2000 100562091976.5048 2001 104771725025.34764 2002 112629071521.35007 2003 121399979965.70363 2004 146683744945.18655 2005 168362996906.54865 2006 192222198144.27417 2007 234699718142.5873 2008 275537264354.05896 2009 248387919040.30487 2010 298342959000.2722 2011 336331515604.7034 2012 368553211821.01855 2013 408969977023.2816 2014 423055376427.64215 2015 386483808569.51 2016 373672151753.4535 2017 431249374916.0704 2018 461791090870.0654 2019 480462685069.83136