Year	current international $
1990	3115.4295897659013
1991	3306.7941289671053
1992	3475.712149448756
1993	3669.341119735373
1994	3852.6670648157233
1995	4052.9921932114576
1996	4326.316737317915
1997	4594.416595505012
1998	4588.909332669092
1999	4729.9581752302975
2000	5086.660675276556
2001	5341.515115479248
2002	5646.547592086132
2003	6030.6348433635085
2004	6616.321879715342
2005	7232.115497270657
2006	8091.5153686915
2007	9032.870886544415
2008	9743.217174184925
2009	10039.147628268189
2010	10905.785172877508
2011	11779.817994471558
2012	12506.784491959555
2013	13098.048421613312
2014	13628.706715016493
2015	13727.579910047163
2016	14224.279219974755
2017	14997.309766622815
2018	15907.494859320252
2019	16778.087783741717
2020	16889.220119515307
2021	18972.57803810773
2022	21086.840104591352
2023	22816.980001602566