Year	current international $
1990	3666.985229598939
1991	3748.238566662708
1992	4178.326240991786
1993	4502.215547668578
1994	4627.604498608152
1995	4900.72648389771
1996	5194.665805192502
1997	5656.507734956605
1998	6006.8282781550515
1999	6354.522056246418
2000	6698.346898222141
2001	6913.811248229468
2002	7231.7040673055735
2003	7173.491961666625
2004	7452.720835596046
2005	8299.451614369387
2006	9220.173494795305
2007	10044.554881704616
2008	10432.700559237817
2009	10458.955484831744
2010	11319.091965041274
2011	11760.641893801157
2012	11846.43857467754
2013	12484.107428026671
2014	13541.934574175046
2015	14886.77900697051
2016	16351.834484639652
2017	17075.245954814
2018	18141.33826314184
2019	19743.400448575438
2020	19085.353617948982
2021	21923.301935807267
2022	24363.893374685547
2023	25610.511865840093