Year	current international $
2000	304.092117875529
2001	335.908199549076
2002	328.544105591196
2003	387.900218134837
2004	427.011567399132
2005	462.096584272399
2006	449.176540154317
2007	485.597147965337
2008	534.600510149682
2009	664.205932995431
2010	770.56669560295
2011	771.314192996172
2012	673.894344902591
2013	543.822459616575
2014	495.062518516891
2015	531.195860986143
2016	644.94240741612
2017	640.688433016494
2018	647.561997664558
2019	511.296769722244
2020	399.35933272594
2021	423.459190147629