Year constant 2010 US$ 2000 479.799408004827 2001 533.981033175009 2002 533.987969606143 2003 490.006274028616 2004 514.12194009244 2005 483.816762797526 2006 499.834074803452 2007 492.846078689367 2008 508.970961160496 2009 509.351539969037 2010 559.483955587041 2011 530.419819262892 2012 516.012685638108 2013 511.029583160108 2014 477.066194930748 2015 516.499471119659 2016 557.922969275574 2017 634.547831493301 2018 642.438269746995