Year	current international $
1990	6656.023369864086
1991	7082.902438458305
1992	7773.386305697752
1993	8122.7195377648
1994	8849.453219589945
1995	8853.266287598217
1996	9464.14071197121
1997	10390.889451631338
1998	10923.208716593135
1999	10855.13126863972
2000	10842.927482318095
2001	10632.728561673786
2002	9946.482721361706
2003	10212.919434000421
2004	11000.407656867088
2005	12177.496976952883
2006	13049.366752841303
2007	14252.337970958797
2008	15534.528135082051
2009	16254.490479556298
2010	17690.908994600843
2011	18937.204204183185
2012	19288.782511773028
2013	20442.353492236445
2014	21640.03321347508
2015	21941.890552323697
2016	22609.834986769845
2017	23373.752518387613
2018	24155.10884580543
2019	25548.06338432856
2020	25551.337053756673
2021	29187.42867516999
2022	32746.315276439986
2023	34061.51294967456