Year	current US$
1975	77013834.65357581
1976	91615369.08007675
1977	97093422.79150148
1978	105253091.23315138
1979	131981796.40718563
1980	206562189.05472636
1981	193260251.04602513
1982	200144389.64241675
1983	170670077.86429366
1984	203737487.53738785
1985	182010364.68330133
1986	226462033.8983051
1987	275332521.31546897
1988	306990840.6524467
1989	316242958.57988167
1990	383505505.7618438
1991	357253030.3030303
1992	395629204.69361144
1993	369895053.0035336
1994	376299166.6666667
1995	474417852.52263904
1996	458367628.6072773
1997	374307867.7309008
1998	444230769.2307692
1999	409307443.3656958
2000	364210179.0763431
2001	401441712.20400727
2002	432627884.6153846
2003	487758776.89694226
2004	534047500
2005	504804128.8396965
2006	456851085.1837912
2007	485017793.59430605
2008	582876812.655632
2009	518052876.7093153
2010	530873959.15420896
2011	592999384.8544679
2012	501268009.07488996
2013	487900099.12365156
2014	428490657.48874694
2015	371902063.8465789
2016	451185884.7066855
2017	424975891.44294757
2018	442459959.5108967
2019	458026278.82249576
2020	466466037.71188664
2021	479099713.83954203
2022	465573863.8699418
2023	510672360.0426527