Year	current international $
1990	6846.965788735134
1991	7001.253548431941
1992	7228.262141511157
1993	7427.233978361327
1994	7807.914156177077
1995	8361.187929505153
1996	8943.265246460149
1997	8890.61748752313
1998	9169.079897874579
1999	9531.851556341295
2000	9998.200092544239
2001	10145.598591188626
2002	10538.035923053496
2003	10882.871946678843
2004	11423.159755475162
2005	12100.500284853484
2006	12908.049030668002
2007	13768.98358306362
2008	14112.119696794689
2009	13851.716908974227
2010	14054.040320953412
2011	14429.131075805399
2012	14775.153720615988
2013	15145.524069140962
2014	15365.104127886092
2015	15534.934886209096
2016	15225.148524122085
2017	16056.786277707317
2018	16557.15602000255
2019	17589.456050015902
2020	15897.53376308748
2021	18584.944609651095
2022	24482.58162324653
2023	28910.152431298757