Year	current international $
2000	265.63642137977496
2001	274.94747170029115
2002	279.17795628426416
2003	286.56469914246634
2004	303.20181428583544
2005	315.92590083830413
2006	351.58340866773864
2007	383.9214672988607
2008	415.907767645131
2009	453.2925373945324
2010	476.5902453412316
2011	504.21995398023944
2012	518.8944291115482
2013	560.1419232851393
2014	578.5034393727437
2015	597.8477425781824
2016	604.3432832565635
2017	638.455621728077
2018	642.4266351017133
2019	628.6130847657276
2020	688.1193837797705
2021	740.7565538606516