Year	current international $
1990	6276.724658186617
1991	6601.667219245284
1992	6831.7343332295795
1993	7028.136150281736
1994	7393.813054473309
1995	7523.184303452549
1996	7806.292942182552
1997	8233.282521171112
1998	8415.0848599608
1999	8416.409958676046
2000	8797.528147426237
2001	8930.358266143521
2002	8968.519614191979
2003	9207.61200272061
2004	9897.982552595902
2005	10528.175776513464
2006	11433.308714021214
2007	12239.418463045497
2008	12860.375886732674
2009	12626.98967753354
2010	13422.418657570386
2011	14312.791043966625
2012	14620.612511976993
2013	15097.411160887943
2014	15408.464880358812
2015	15191.066331110907
2016	15441.56743639134
2017	16075.993688222228
2018	16760.480081907943
2019	17169.51315121312
2020	16501.611229047172
2021	18561.53321944518
2022	20726.864861159724
2023	21822.72565498654