Year current international $ 2000 168.023750290741 2001 204.564156734564 2002 209.109040447642 2003 214.059689311238 2004 224.83400374758 2005 237.241226861788 2006 250.146680087142 2007 261.353508851537 2008 260.958872781244 2009 249.985443651286 2010 258.270918609863 2011 258.508576938833 2012 269.395667663536 2013 247.356108814682 2014 263.474213256699 2015 289.162260151037 2016 294.154643577356 2017 312.519261976874 2018 320.092125554085 2019 328.825454413748 2020 337.486270730028 2021 425.17077961537