Year constant 2010 US$ 2006 304560942599.769 2007 320425048567.888 2008 331117084760.165 2009 350541571875.983 2010 368905555630.731 2011 380512850225.7 2012 401886531105.703 2013 427800368814.977 2014 458432185483.523 2015 494711229969.513 2016 505080999122.693 2017 530497939656.873