Year	current international $
2000	2225.60762273579
2001	2351.94161862076
2002	2524.57853000521
2003	2840.52106239035
2004	2997.99931280686
2005	3069.84425401216
2006	3230.02781190438
2007	3374.8490294785
2008	3649.64777048441
2009	3911.96589713061
2010	4085.27136624886
2011	4257.52575848015
2012	4453.84401522795
2013	4627.81292182088
2014	4778.6622729398
2015	5004.91066069164
2016	5254.7996743285
2017	5458.28053823334
2018	5719.84628422139
2019	6041.60189145965
2020	6119.04597737963
2021	6519.19755785617