Year current international $ 2000 135.84889705704137 2001 155.56049571979494 2002 164.32598790511244 2003 164.87868276859467 2004 175.74610138245632 2005 177.19642617967628 2006 196.691473652433 2007 212.257708965985 2008 224.98716537241575 2009 266.83497141373493 2010 254.88620214838662 2011 261.84188935060024 2012 246.9646036492291 2013 259.16149207389486 2014 298.21824411192733 2015 293.1403847625524 2016 330.272028850676 2017 330.15107344002854 2018 320.21804801228427 2019 291.3515878070801 2020 293.4550373943451 2021 332.5059812790566