Year constant 2010 US$ 2006 274828080.756077 2007 314676571.176406 2008 329856948.479388 2009 323531791.269812 2010 347883646.52668 2011 364012797.411098 2012 362115250.248226 2013 368440407.457802 2014 378388298.459162 2015 344333367.410731