Year	current US$
1976	222585831.91663995
1977	241135944
1978	279559655.31889707
1979	304899983.3333334
1980	336575041.666667
1981	384461404.025858
1982	392879213.9995579
1983	354980712.8529538
1984	413318057.49433434
1985	487909546.71428263
1986	442427425.43256426
1987	497027997.6423585
1988	517621463.5344554
1989	466966307.37958163
1990	374879242.7413065
1991	459470490.9918639
1992	513884370.57647085
1993	608488175.0567417
1994	569025006.6632346
1995	924574944.4376845
1996	921727898.4811134
1997	939988781.6591861
1998	977657818.2056826
1999	1030448766.1995518
2000	1193929207.4318154
2001	1114322136.0024202
2002	1520674862.3965507
2003	1590643168.7048428
2004	2005849167.1590292
2005	2494828047.3931665
2006	2668280645.7278028
2007	3207020240.8654623
2008	4598770404.758168
2009	4788248203.85672
2010	6041080159.556052
2011	6367771898.274347
2012	7499578574.971913
2013	8218037588.221265
2014	8999372458.321255
2015	9765808630.909193
2016	8658253487.055265
2017	12133485823.394028
2018	14106539302.24899
2019	14422300469.133514
2020	10971579060.085531
2021	11413837957.038757
2022	12826437769.728952
2023	14883686739.800266