Year	current US$
1972	44944033.70743748
1973	53528143.55333939
1974	66332379.746140316
1975	75575605.26647581
1976	67100024.32026043
1977	67973709.5460759
1978	64151727.160190895
1979	74585349.7759037
1980	84795797.21930179
1981	81922265.10915032
1982	83866575.46414748
1983	76236131.62234335
1984	71572228.96583775
1985	81325723.09445643
1986	83285133.35000843
1987	102820539.23496984
1988	114296800.91645688
1989	107379403.04489328
1990	101131164.8626358
1991	100721640.35506396
1992	100328744.86831847
1993	101344356.8894534
1994	109237857.62740971
1995	111496972.3252369
1996	115036327.9406684
1997	98259516.76879962
1998	82453004.85038313
1999	72670412.28140384
2000	69584195.11861466
2001	74562725.25631359
2002	77406856.06330822
2003	92007505.23925433
2004	108188329.84965234
2005	128898660.20645115
2006	150897186.42555466
2007	159757163.63683066
2008	173069568.80188233
2009	190141419.73035055
2010	198696111.56838593
2011	210849764.53282166
2012	221717188.48642012
2013	256192581.863963
2014	282793569.7649573
2015	279487111.85352963
2016	289784780.5572956
2017	297476635.31531847
2018	349859400.8698033
2019	386802661.3254926
2020	440554552.8379049
2021	493718030.41852754
2022	549268481.2259303
2023	573880717.0549116