Year constant 2010 US$ 2005 170179159.836605 2006 172449509.260492 2007 164020798.113974 2008 155830675.990709 2009 133545216.088048 2010 136382100 2011 144995566.575884 2012 156971801.695175 2013 158095898.405655 2014 180563275.572017 2015 184633113.580731 2016 200772205.299535 2017 203326188.18238