Year current international $ 2000 80.3004596718374 2001 83.2854504765053 2002 85.3398995484898 2003 89.6619260011792 2004 89.3340410611545 2005 85.6133990352841 2006 82.319761320844 2007 82.5730494067992 2008 79.9818907932425 2009 83.3544401343017 2010 71.1451648699104 2011 65.1094866793225 2012 66.3105647434394 2013 69.3877997345377 2014 72.5357034485979 2015 75.5335641832633 2016 80.3391830217093 2017 84.5066117140561 2018 85.3121062684837 2019 84.93321092828 2020 82.5287350973601 2021 79.5544928222992