Year current international $ 2000 187.0174046489961 2001 194.96724807055088 2002 209.26101117016603 2003 215.5958324216067 2004 228.43545210874476 2005 240.39459128810918 2006 254.7933489970305 2007 276.92919737466195 2008 305.9871376210625 2009 318.99570754572017 2010 318.70220677516136 2011 325.8400963639012 2012 336.062819929808 2013 356.4071342189742 2014 373.91984277902924 2015 386.27593604725223 2016 407.58549044617496 2017 436.6976812131705 2018 447.07819071428736 2019 453.88811292963896 2020 405.4423546134689 2021 407.64474907457276