Year	current international $
1990	4527.440016504632
1991	4600.959907890982
1992	4873.081628967219
1993	5122.0927271972
1994	5494.809712322742
1995	6191.063083941864
1996	6654.67134943474
1997	7196.120309322751
1998	7686.503293767828
1999	8148.268238472316
2000	8518.656402866745
2001	8226.688558712438
2002	8809.691024467584
2003	10048.964514789477
2004	10741.976881008053
2005	9678.967951978722
2006	12043.102691401307
2007	12813.408194855954
2008	13736.349917811742
2009	12251.572776443281
2010	12788.702849154144
2011	13684.599285077407
2012	13948.66217648269
2013	15223.845230768276
2014	16580.752090250517
2015	17570.274052604287
2016	18317.30447589597
2017	19175.61671431313
2018	21154.525504656198
2019	22309.797480574023
2020	13103.85051499034
2021	18865.719302223006
2022	22900.058817074678
2023	24808.707768606717