Year current international $ 2000 2558.6168982411577 2001 2749.4530510630643 2002 2960.9208701412635 2003 3160.176612212748 2004 3343.1398760348366 2005 3535.6291562788415 2006 3783.311891345796 2007 3986.8826000536105 2008 4181.1860606003565 2009 4374.852094429474 2010 4524.986587173795 2011 4728.385498733751 2012 4877.377201736932 2013 5037.653898614325 2014 5237.802856455541 2015 5452.979816445701 2016 5669.163234394026 2017 5868.9609692939675 2018 6109.577881164432 2019 6394.702984116281 2020 6925.209972269504 2021 7260.343871731113