Year	current international $
1990	3236.4846741084934
1991	3476.62300876774
1992	3700.1555745457085
1993	3954.026384302285
1994	4239.2252221665585
1995	4535.7865786525745
1996	4858.151661292167
1997	5114.759621706467
1998	5097.10484270954
1999	5323.716832418142
2000	5731.142003819844
2001	6046.595985662722
2002	6424.547703172031
2003	6854.857722137702
2004	7442.946648971226
2005	8078.880381645406
2006	8909.827614662021
2007	9872.017936111559
2008	10510.422511005265
2009	10847.669871642802
2010	11771.862048705412
2011	12633.70332181565
2012	13528.63811539152
2013	14229.212165580055
2014	14868.598070830283
2015	15292.05265813823
2016	15841.405294551221
2017	16659.31736492314
2018	17718.632121178885
2019	18795.619135470428
2020	19059.83177971524
2021	21131.29603087171
2022	23225.81351767882
2023	25049.721842765317