Year current international $ 2000 51.31377137115256 2001 52.649471933210286 2002 51.49249520648163 2003 76.29036801529435 2004 73.19108262717903 2005 82.58734333782205 2006 93.9265079240488 2007 96.00119210799348 2008 97.12004930512033 2009 97.95023735567713 2010 93.79341140363049 2011 92.4952142618481 2012 92.4224790823895 2013 98.04166650467454 2014 98.83794357534761 2015 104.5331795472886 2016 108.98820644182634 2017 110.82760860603997 2018 105.1731110427252 2019 104.44117879406348 2020 112.25149443656755 2021 139.55077129052313