Year	current international $
1990	8262.431810331167
1991	7554.32368210644
1992	7322.58783168542
1993	6830.78648395325
1994	6186.295204169453
1995	5918.8904591883265
1996	6149.937040831764
1997	6463.504611042117
1998	6523.747605859861
1999	6859.906784858944
2000	7725.954827299053
2001	8981.670591155918
2002	10014.714139053896
2003	11124.70515139099
2004	12433.843736981755
2005	13943.107780717944
2006	15743.61176785783
2007	17409.01351581073
2008	17989.882132183855
2009	17958.487608722477
2010	19229.93564480348
2011	20779.44425144915
2012	22021.28148809739
2013	24480.540987873097
2014	24689.815519218413
2015	23178.222401707815
2016	23760.00100289808
2017	24789.30136734662
2018	25997.286085974752
2019	29767.628000931207
2020	30164.603518411728
2021	33893.895457204315
2022	36595.40669278011
2023	39332.470020415385