Year	current US$
1970	4499999.867752199
1971	680000.0071525569
1972	3190000.114962461
1973	639999.9894201752
1974	11200000.334531069
1975	12289999.760687359
1976	9379999.957978724
1977	25720000.4011393
1978	62430001.46746634
1979	65340001.59427516
1980	41869999.17030337
1981	68129999.42898753
1982	50780000.58233742
1983	69069999.48620795
1984	39149999.99105935
1985	42049999.5630234
1986	92419999.32006001
1987	148920000.90703353
1988	164100000.11324877
1989	93260001.33156772
1990	150800000.6601215
1991	132630000.96566983
1992	228389998.48254025
1993	139339998.42405316
1994	146319997.95138836
1995	259100000.91791144
1996	246040001.15394598
1997	211779998.83145094
1998	212780001.30131844
1999	182320000.16421074
2000	228309999.71926197
2001	225480002.61187547
2002	195570000.0412761
2003	218260000.60141075
2004	251770002.2645295
2005	362959999.5613099
2006	414360007.48723745
2007	496329997.94185114
2008	462169996.4404108
2009	509409992.89229506
2010	494579996.8689679
2011	751589999.6906515
2012	581139999.6876713
2013	427470001.7459692
2014	439190000.00692904
2015	497529995.5941735
2016	559270005.8259066
2017	499990006.02960604
2018	663869995.8324432
2019	533309989.3927579
2020	808500000.2682219
2021	580220002.5171043
2022	506999994.83302236
