Year current international $ 2000 60.72934597426931 2001 64.77693651644067 2002 63.97905313444829 2003 75.72576427893131 2004 75.27451740380094 2005 74.51085392388163 2006 78.62562907291218 2007 81.50324099757538 2008 84.26468109021911 2009 86.71373341644481 2010 84.50665887725556 2011 86.94504651289814 2012 86.67337495070484 2013 92.99285064614952 2014 94.62288511263938 2015 97.2677607020834 2016 99.30595920840108 2017 95.75478047647621 2018 88.92904889332961 2019 88.15724651760341 2020 86.24500886178929 2021 95.74158578134444