Year	constant 2010 US$
1960	4746385072.17766
1961	6280125935.15616
1962	6231747958.92156
1963	7287849059.25561
1964	8476969747.66221
1965	8442754440.85936
1966	8785467500.71104
1967	10264660381.798
1968	9700332773.10065
1969	10482347979.4885
1970	11725736558.4716
1971	9192405186.49461
1972	9182308379.7551
1973	4554835780.97109
1974	2854187507.37649
1975	2545209596.86897
1976	3502943442.51107
1977	1938063121.12624
1978	3074867410.16046
1979	3411975657.26786
1980	4552882285.225
1981	2162095623.43314
1982	2365429307.67627
1983	2267324960.98026
1984	2120668888.21785
1985	2274246382.56309
1986	2179670602.00932
1987	2303950809.79907
1988	2476579174.38693
1989	2849233193.12954
1990	3114573965.442
1991	2646844561.41479
1992	2414169364.20483
1993	3317525133.78338
1994	3114788442.8484
1995	4622233768.22272
1996	5274410643.82327
1997	5434816872.7359
1998	5677805939.62922
1999	5808712172.41998
2000	6403171396.5966
2001	7225891128.55627
2002	6875621552.51048
2003	7463456140.93008
2004	13788696951.8414
2005	19037059270.6007
2006	22499985777.5658
2007	26096841409.3661
2008	25600679774.0112
2009	24935150428.3637
2010	25106319010.5127
2011	32425555330.2859
2012	35836256553.419
2013	36272796466.9607
2014	36696580204.8538
2015	37871863480.5809
2016	35186034618.5498
2017	36197803017.5172
2018	45975722516.9733