Year	constant 2010 US$
1960	4934270106.79523
1961	5300824686.98742
1962	5801253435.12309
1963	6029668829.632
1964	6335802325.17713
1965	6615397932.56353
1966	7448024173.54307
1967	7661512005.96269
1968	7909593871.16064
1969	8121896976.43033
1970	8282664450.67751
1971	9407207461.40288
1972	9617615003.23264
1973	8874317189.35876
1974	8647797358.28977
1975	6445508059.26179
1976	6833269255.43795
1977	7413311668.04977
1978	8100334942.30137
1979	8740561494.13025
1980	9280204710.92904
1981	9517624031.7775
1982	7523017402.13443
1983	7756053232.52811
1984	8445801379.22459
1985	8672676628.43856
1986	9333434967.30286
1987	9825929165.60701
1988	10691846315.4621
1989	11862789961.6829
1990	11979859882.631
1991	12619245284.1428
1992	14059588771.8851
1993	15079638563.3589
1994	15695160828.0928
1995	16877593001.1063
1996	17420043958.051
1997	18383565448.048
1998	18608381009.6826
1999	18474920296.0988
2000	19621220719.6047
2001	19503862885.0802
2002	19948949766.5167
2003	20172362896.1273
2004	21503897340.0514
2005	22204340268.5648
2006	23345942535.7307
2007	23953501275.5393
2008	24256358583.1183
2009	22796980116.5509
2010	23542005158.2638
2011	25398644732.6574
2012	26244659492.6367
2013	26778000979.7106
2014	26587937599.1995
2015	26640152637.2749
2016	26357147427.5881
2017	26831593611.0636
2018	27877016946.8212