Year	current US$
1960	65530000.2992153
1961	69349999.8580664
1962	76050000.4515052
1963	69050000.12181701
1964	63940000.9512901
1965	73019999.5301664
1966	97920002.0432472
1967	189180001.13964102
1968	131480002.930388
1969	164199995.08000898
1970	186749995.062128
1971	214299998.41749698
1972	289919994.363561
1973	413620001.183823
1974	472399995.254353
1975	423499999.81373495
1976	427239996.51335204
1977	300480008.55557597
1978	591949994.530529
1979	808289994.910359
1980	868330007.569864
1981	960929990.898818
1982	1180580008.17895
1983	1219230011.7407
1984	1315800023.11058
1985	1368410012.00862
1986	1696870038.4758399
1987	2478260024.00555
1988	2980529938.7853603
1989	3171040008.06063
1990	3290670073.75509
1991	3004240016.72678
1992	4643079994.1197
1993	4006490076.6517997
1994	3925879983.04889
1995	4271080010.5854897
1996	3020600004.3917403
1997	2240179975.00487
1998	3840079967.19703
1999	5382139951.86612
2000	4182549983.35242
2001	2987510009.4005504
2002	2755029982.00431
2003	2380070047.12895
2004	1979980020.17848
2005	3217969979.55441
2006	1394359971.78406
2007	1182769969.34973
2008	85259983.6066365
2009	1225990013.2380402
2010	971550001.997501
2011	-199500017.300248
2012	-109220053.27604699
2013	2000440073.6149402
2014	160290028.469637
2015	52330030.8659673
2016	-103219927.936792
2017	187110023.83381099
2018	-1165450012.50505
2019	-354570031.43429804
2020	1716640016.9581199
2021	905379978.179932
2022	1254640040.278437