Year	constant 2010 US$
1960	262883886.758323
1961	302384572.40464
1962	320091757.863637
1963	399093129.156271
1964	441318010.824195
1965	480818696.470512
1966	531627277.732624
1967	672769609.059719
1968	723579787.874658
1969	804500684.193649
1970	861896091.143873
1971	898592036.997674
1972	1052910126.82363
1973	1052910126.82363
1974	2294941433.71759
1975	2942308604.26952
1976	3311155614.90188
1977	3272577417.89523
1978	2657203216.0002
1979	2268595218.73369
1980	2634621503.322
1981	3786241126.20962
1982	3424636806.29488
1983	3929398261.60879
1984	3996204924.75218
1985	4070964762.19165
1986	3901827257.62546
1987	2371106331.84355
1988	2694005204.06071
1989	2877458421.97379
1990	2741724249.19377
1991	2688831502.52952
1992	2739121248.00336
1993	2898408349.4999
1994	2431665034.93841
1995	2448966039.21331
1996	2508721094.31291
1997	2858846119.57321
1998	3603715725.97267
1999	2763227956.64393
2000	2307909788.2961
2001	2316841926.19337
2002	2506236328.33108
2003	2239143253.39248
2004	2299285787.86363
2005	2512605804.48
2006	2944193727.11418
2007	3050505652.38124
2008	3432043184.08953
2009	3436566508.761
2010	4522116999.1742
2011	5087179017.3665
2012	5552449799.78063
2013	5693780125.05074
2014	6141749180.44154
2015	5482457868.94045
2016	5123143365.5224
2017	4750056663.08026