Year constant 2010 US$ 2004 223293416.563378 2005 215824397.938823 2006 213450098.77382 2007 233516912.062572 2008 221375862.029201 2009 216728467.295344 2010 219133200 2011 220688933.562745 2012 226486160.562624 2013 224580562.061883 2014 221377311.245375 2015 225253119.134614