Year current international $ 2000 82.68322083846037 2001 90.49048256876576 2002 90.83382270288168 2003 97.34745402154964 2004 102.08157347725438 2005 113.76069194042577 2006 118.80963686644716 2007 125.31666506804174 2008 127.41125285540144 2009 132.46102552084164 2010 137.3027241312286 2011 137.79072364858516 2012 143.9153643366273 2013 157.0013107753206 2014 153.68269562705507 2015 159.07468561045525 2016 162.99889574693543 2017 151.37448467700753 2018 155.21195422080612 2019 156.3044544759176 2020 153.5094793731315 2021 167.5016251069347