Year constant 2010 US$ 1995 353021365.545913 1996 352539275.04383 1997 308188273.276652 1998 320796794.100361 1999 356991990.065816 2000 323484051.322137 2001 266111308.300893 2002 364192885.834567 2003 197206801.53889 2004 215728877.559853 2005 165101428.294402 2006 154404051.961094 2007 161908240.93033 2008 117464529.451213 2009 139493681.432384 2010 131553756.817034 2011 109426597.426099 2012 138202367.587519 2013 102136965.218778 2014 119873657.537172 2015 130724667.107408 2016 116038124.311809 2017 115374587.659216 2018 121730500.624865