Year	current international $
1990	9655.991468892074
1991	9573.480729242025
1992	9205.510087097891
1993	9469.951124924486
1994	9839.608169148883
1995	10225.148103767166
1996	10806.204342138242
1997	11494.75765840303
1998	12038.221225540632
1999	12224.947427252415
2000	13033.820073776069
2001	12976.745475287416
2002	13228.434536420957
2003	13729.276422172432
2004	14243.914515646924
2005	15216.519036056632
2006	16579.657566056983
2007	17317.648939972514
2008	17685.526119381408
2009	16830.439724807682
2010	16601.406835416896
2011	16765.739302173624
2012	15772.246780628615
2013	15807.82200778776
2014	15636.431823294259
2015	16006.948109498813
2016	16438.835856606027
2017	16279.246528043932
2018	16960.247742922256
2019	17459.15126300623
2020	14687.107035888128
2021	14752.373697231278
2022	17892.18925715075
2023	19357.16944286764