Year constant 2010 US$ 2002 356.645121831745 2003 367.949418333497 2004 378.372180249065 2005 381.643092909488 2006 389.219340408823 2007 416.671503270854 2008 436.139336531896 2009 456.615603923639 2010 471.206347122448 2011 480.659992805221 2012 471.744844010003 2013 479.05400798854 2014 493.727724034221 2015 493.091608975181 2016 501.772267728028 2017 510.239813073145