Year current international $ 2000 134.57394514577499 2001 149.88545071251338 2002 159.52093369343748 2003 173.9673779955493 2004 207.4281428679031 2005 210.2762045572586 2006 230.4735106792503 2007 251.56828502878713 2008 282.3832036811338 2009 303.9328155177072 2010 320.2759963153857 2011 338.6189755079328 2012 357.9738777786979 2013 359.93688157747044 2014 362.9239905253974 2015 381.99759420831805 2016 413.1681863868148 2017 436.59579783584314 2018 436.9603610295914 2019 477.7029378565046 2020 490.6116683614851 2021 551.1540221696267