Year constant 2010 US$ 2003 189092353.79043 2004 185826582.141704 2005 187224961.553546 2006 191948777.118666 2007 185635845.514827 2008 178945117.7937 2009 175830820.443804 2010 179955500 2011 180530793.930565 2012 177536418.676299 2013 176356532.340766 2014 174145387.153206 2015 179321846.355241