Year current international $ 2000 164.0356184965358 2001 158.15883832175388 2002 172.52721986364372 2003 168.4016717803122 2004 195.72922108448017 2005 218.0707742663508 2006 221.55607829825004 2007 221.94973451572463 2008 216.6420604092673 2009 227.17181374036073 2010 225.1643328922104 2011 225.77314216076732 2012 238.18590468889775 2013 251.40610985795928 2014 273.6188549392353 2015 288.7125041259592 2016 290.27647711297465 2017 294.4124639513446 2018 350.5040034352841 2019 371.6360707458297 2020 366.0192803046973 2021 394.12932304725024