Year	current international $
2000	189.163365872836
2001	194.141345990652
2002	212.500220883597
2003	217.970098792231
2004	219.806116449983
2005	227.47594763124
2006	227.930800802042
2007	238.793115064459
2008	253.20587508307
2009	273.454939897901
2010	270.711699285802
2011	259.70978876723
2012	305.072162077321
2013	312.911094997588
2014	308.93230206885
2015	313.83743178876
2016	349.947117194457
2017	365.389429020584
2018	403.83818636522
2019	424.588264870804
2020	461.362415718112
2021	527.037461705151