Year current international $ 2000 1253.85547605836 2001 1315.08683558226 2002 1434.42722842616 2003 1341.50198504888 2004 1309.31347219557 2005 1505.77016907603 2006 1381.51062502221 2007 1487.63660115691 2008 1880.94872862475 2009 2078.76735580029 2010 2868.29310731883 2011 2877.46562589798 2012 2396.01561448378 2013 2416.80847159332 2014 2506.86532040595 2015 2665.54872237877 2016 2573.70743619549 2017 2672.40831790192 2018 2861.62775863638 2019 2923.10726908679 2020 3363.28006230919 2021 3632.02109365455