Year	constant 2010 US$
1960	2998974141.0402
1961	3160745394.12567
1962	3371760198.59091
1963	3707715060.17483
1964	3857277092.98107
1965	3611466343.84114
1966	3769135482.21065
1967	3942797371.78642
1968	4332872452.94357
1969	4384584013.0744
1970	4718195189.45906
1971	5101478262.23385
1972	5249367464.52628
1973	5167406056.76493
1974	6008374735.62644
1975	8085231930.57181
1976	11670666015.1533
1977	11661705394.5323
1978	11802194408.0268
1979	12567005399.0216
1980	11799152555.9603
1981	11630602019.3442
1982	11989240341.6967
1983	10601197760.5003
1984	10221899678.8058
1985	11366738842.9904
1986	12348373658.2833
1987	12457391138.3783
1988	13135721986.7487
1989	12241754900.2464
1990	11127566766.519
1991	10956727381.5649
1992	10475622960.7755
1993	10701908324.8595
1994	10938309846.1041
1995	11042707592.5127
1996	10429208401.4418
1997	10463912384.6877
1998	10229110644.8079
1999	10925166299.2085
2000	11171072722.234
2001	11714891374.9881
2002	11831343755.9767
2003	12004892834.3665
2004	12570629981.8001
2005	13069259860.9419
2006	13511369523.4671
2007	14176334865.0275
2008	14776827870.1028
2009	16577989626.5241
2010	16730385401.3211
2011	17292924011.0133
2012	21023505104.83
2013	19542661642.1373
2014	19941495946.2614
2015	20414137203.1352
2016	20729008535.3135
2017	21047629823.8099
2018	21426487160.6385