Year current international $ 2000 2147.517167368923 2001 2280.081365623526 2002 2429.1563926882927 2003 2531.3805587606653 2004 2643.3466344114686 2005 2765.567573140119 2006 2987.0459088880502 2007 3131.8331618108377 2008 3354.3302472985424 2009 3527.732177423235 2010 3613.1528605470135 2011 3734.44710370662 2012 3800.245980737671 2013 3939.746644677126 2014 4042.9279890756766 2015 4145.93580188839 2016 4381.752773296356 2017 4577.538748863285 2018 4773.176800074145 2019 5099.090462035953 2020 5372.235129849896 2021 5765.927596209409