Year	current international $
2000	335.825744880321
2001	363.737215522196
2002	363.405651771262
2003	396.956435711846
2004	408.751286452037
2005	456.519307291554
2006	515.394422612732
2007	566.789960037917
2008	543.383634345832
2009	433.338532362969
2010	473.267085855237
2011	490.085981967558
2012	483.959572863062
2013	467.783815693185
2014	473.616260837164
2015	417.699560008105
2016	470.018498068342
2017	443.858196705612
2018	436.689122247684
2019	436.074204681378
2020	428.995157277304
2021	402.926879726568