Year	current US$
1970	7729999.890551042
1971	32340000.074356828
1972	34639999.73982576
1973	51039998.85171652
1974	130719999.86283478
1975	164469999.59833932
1976	140579999.10786748
1977	161820002.9563159
1978	296739997.29752535
1979	396430002.41369057
1980	356169999.7801336
1981	443730003.19674593
1982	783620017.6328424
1983	850450003.573671
1984	1081990015.823395
1985	1000290015.4981775
1986	1032200027.6669855
1987	1404540011.6052487
1988	1462830010.7643013
1989	1876239991.717041
1990	2218850040.0111094
1991	1756060007.177294
1992	2406719995.6830645
1993	2223770045.697686
1994	2664360034.0522804
1995	3099500041.0564218
1996	1865769972.2610412
1997	1587419994.3114073
1998	3031870017.226784
1999	3694199979.9590616
2000	3264479995.515197
2001	2242709999.8705096
2002	2165460005.231201
2003	1231879985.6230567
2004	2452470010.4855003
2005	2043489979.8631659
2006	1305069988.6530643
2007	1246209981.3967936
2008	853969999.7492146
2009	1771039996.162054
2010	952029991.276562
2011	1111790025.3534365
2012	861829977.0206215
2013	571609991.0140053
2014	1267549992.4272285
2015	534130013.1082511
2016	594830041.8257706
2017	777280032.3069093
2018	-1178790019.1694503
2019	-1098800002.1725895
2020	-409599978.02972746
2021	-270029993.29566956
2022	-126369990.4531241