Year current international $ 2000 268.43670114671016 2001 283.52605853235406 2002 300.26011341102014 2003 320.1591783818883 2004 336.11216828137924 2005 355.26461849428205 2006 376.22408783092686 2007 394.9940806177391 2008 407.4458997386815 2009 421.31009765669484 2010 430.37473168454716 2011 443.72071877070346 2012 462.1166175875742 2013 479.41691657847406 2014 487.91839650849863 2015 501.471064277966 2016 523.1315137647205 2017 537.8593028733821 2018 559.112145930396 2019 580.3089902508808 2020 577.7205174564024 2021 617.4866430415807