Year US Dollars adjusted for inflation) 2000 3263724315.43845 2001 4144078630.67561 2002 4115030782.42316 2003 4361115614.51183 2004 4475033482.42383 2005 4745022533.73324 2006 4958692405.24165 2007 5319986848.90329 2008 5460690853.41224 2009 5643168877.52706 2010 5829933774.83444 2011 6110503029.44907 2012 6287423391.50681 2013 6503159349.69169 2014 6581071814.38167 2015 6850530807.78599 2016 7129271791.56854 2017 7447672188.78534