Year	current US$
1979	4309999.948367475
1980	22240000.281482913
1981	59380000.35658474
1982	458530007.1593375
1983	492489997.4204595
1984	502320005.53235453
1985	574610014.2113868
1986	668190011.7620823
1987	869249996.2151053
1988	1260730019.6122372
1989	1538659977.1752946
1990	1516980023.7696614
1991	1232379994.893447
1992	2061850014.5096385
1993	2208920054.046436
1994	2328570029.0352087
1995	2515130014.0023212
1996	1747489990.1933973
1997	1268830000.432209
1998	1779800020.944325
1999	1893589966.8764374
2000	1298240003.9322677
2001	1119580012.1724613
2002	1269150018.1257727
2003	1211249963.134527
2004	1659589999.2883203
2005	1757790020.7042696
2006	1218430025.3391273
2007	1459939995.7694108
2008	1449549982.9798942
2009	1233250017.9559
2010	790820002.2280216
2011	751260007.7744575
2012	278440006.1778721
2013	-124130002.10933405
2014	-300929980.79583055
2015	39549958.7506061
2016	-101910031.47326496
2017	-356459985.5672568
2018	-199850008.44299847
2019	-124330009.89072113
2020	-267489976.86617005
2021	-336669991.681353
2022	-126739993.27979957