Year current international $ 2000 60.46122203798161 2001 66.56801757090534 2002 67.30070299785937 2003 94.81487385280607 2004 107.74399495904521 2005 108.36071271391997 2006 114.40387327919332 2007 120.74190877894729 2008 124.4700781173975 2009 135.84115076061673 2010 126.91476152354561 2011 128.835076292723 2012 130.48055162703872 2013 141.6023331732706 2014 143.78279724694437 2015 144.50579493514618 2016 155.42736038943792 2017 152.9738605742984 2018 144.92868574441346 2019 150.1855763907071 2020 158.38025702548583 2021 172.22447949288576