Year	constant 2010 US$
1960	3749068913.54662
1961	3797276621.43855
1962	4263187661.76751
1963	4892501535.27227
1964	4613709971.55996
1965	4334918407.84764
1966	4474410992.3301
1967	4570051987.10362
1968	5002275713.48401
1969	5254640160.21942
1970	5593836562.73606
1971	5464121043.50881
1972	4366282458.76528
1973	4103172920.51178
1974	4887467798.70525
1975	3774528004.26063
1976	3215299232.18909
1977	3711993507.67794
1978	4356989406.64154
1979	5091140524.41731
1980	6206306779.26656
1981	7246354196.11556
1982	4470926097.7837
1983	3798728660.83288
1984	4514584082.24002
1985	4964909899.73645
1986	5084957031.90779
1987	6189026211.34277
1988	7064940761.69826
1989	9184286760.35772
1990	9415443652.37395
1991	9398722956.76336
1992	11656806475.9993
1993	13749904366.5002
1994	14600481900.2851
1995	18031556490.5279
1996	19639745531.4257
1997	22081684740.2893
1998	22798349984.5467
1999	19544972455.4135
2000	21507807105.8889
2001	22078783092.4894
2002	22947504334.8269
2003	24817690544.9858
2004	28040228233.6253
2005	34618023363.0848
2006	36679311898.5193
2007	40549530257.4039
2008	48046554775.6161
2009	41638326285.5301
2010	47105367636.4412
2011	54712336968.0238
2012	60885656725.8878
2013	62902838596.1029
2014	59862371289.2427
2015	59688593402.224
2016	58890482219.4789
2017	57297451435.8648
2018	59961872717.9328