Year current international $ 2000 749.67393378281 2001 786.812454265821 2002 827.144387643929 2003 793.804952773772 2004 845.628013365071 2005 880.266103108352 2006 958.141018720782 2007 1027.07558228765 2008 1063.98461721809 2009 1110.0238752516 2010 1132.54524014741 2011 1167.38427852304 2012 1160.01898598119 2013 1239.2227733038 2014 1315.2859063032 2015 1309.01077612951 2016 1302.74842638917 2017 1371.23449971244 2018 1416.76470801618 2019 1471.48906453933 2020 1534.58978290865 2021 1625.64123610824