Year	current US$
1975	55342804.811643
1976	42639984.03034235
1977	51580127.566274665
1978	63449013.07611993
1979	75672450.653806
1980	96803062.69576891
1981	98642668.92059863
1982	102321881.37025805
1983	106249689.25570527
1984	113458956.89355144
1985	114005866.8522846
1986	173370456.918411
1987	206234773.529558
1988	214587580.17202806
1989	257296276.04037192
1990	214537861.0848705
1991	215780838.2638095
1992	222000000
1993	252075771.88882813
1994	256252175.21006316
1995	292248794.3121365
1996	300104410.0830309
1997	342713667.7770596
1998	448366727.98687416
1999	464923184.0103416
2000	466550000
2001	493450000
2002	474800000
2003	513299999.99999994
2004	560000000
2005	620600000
2006	506397400
2007	645980600
2008	625661250
2009	522166849.99999994
2010	608766750
2011	671152700
2012	659716600
2013	592277200
2014	622397600
2015	613992550
2016	681839350
2017	748119250
2018	791149450
2019	810677250
2020	670082200
2021	768111850
2022	839308850
2023	937903138.007185