Year	current US$
1975	36808692574.29414
1976	36202033692.24276
1977	38966059111.87881
1978	45979029449.18519
1979	55788041862.61852
1980	75055190967.94579
1981	79644154939.32614
1982	68723190441.4064
1983	60699939644.460464
1984	59985726439.30073
1985	52739204973.452194
1986	58435635278.79991
1987	67568550655.01137
1988	72891353395.0078
1989	74639692134.12054
1990	80718495291.08896
1991	84179857299.04791
1992	81875720031.03256
1993	80128463104.53743
1994	87101497127.7157
1995	105652182761.928
1996	109906854256.42741
1997	114014400731.20882
1998	113147259771.24536
1999	107597648473.58607
2000	112558571378.14252
2001	108209916094.8832
2002	117176713580.76134
2003	144896291096.50516
2004	181926276973.76453
2005	217848149900.08276
2006	254072302218.17322
2007	317490680492.0901
2008	386592647246.83795
2009	343879553635.2885
2010	391471156689.25854
2011	460309926657.4479
2012	482241928830.70233
2013	501463221448.2233
2014	495334377533.88934
2015	429977131901.96747
2016	380390384289.78064
2017	409406571932.6915
2018	454587647004.12994
2019	435289511865.2597
2020	381081660227.60815
2021	470347294839.1719
2022	562277529001.4763
2023	554736846680.7743