Year	current international $
2000	358.836510897439
2001	397.31398001433
2002	435.529899627488
2003	446.756876744132
2004	432.889498392782
2005	407.267959287241
2006	381.126638039812
2007	415.576733510442
2008	380.853043634323
2009	399.378486972334
2010	318.239780565603
2011	285.311264471483
2012	314.725488522001
2013	301.078066728076
2014	309.029266123588
2015	295.773136293506
2016	303.430747888395
2017	332.546220720478
2018	306.050995087574
2019	313.23127651216
2020	313.713155379433
2021	299.248497548987