Year	constant 2010 US$
1960	4029454716.17639
1961	4162569547.14557
1962	3983734424.68849
1963	4107543355.62031
1964	4372559204.51031
1965	4476947126.66852
1966	4375965053.03126
1967	5005537337.26469
1968	5046230142.72154
1969	5223843059.93633
1970	5435136809.99303
1971	6408165503.15433
1972	6187735509.95859
1973	5920243928.05961
1974	5681282292.95297
1975	7646844833.27873
1976	7990462375.24256
1977	8719664558.38647
1978	9526468411.64957
1979	9199769838.46173
1980	9417302122.56076
1981	9289835148.91258
1982	9292166206.83282
1983	7864146160.02621
1984	7903003391.6484
1985	8522823098.88024
1986	8958597995.21181
1987	9462087707.13104
1988	8613561139.75622
1989	8754426325.34462
1990	8596658284.28383
1991	8701048321.63168
1992	9125459310.60205
1993	8319082459.88424
1994	8963252054.40051
1995	8724000379.82914
1996	8306706099.94708
1997	9241652342.8341
1998	10250316949.6736
1999	7160811200.25537
2000	7958786305.92307
2001	10639282699.0583
2002	12541203061.2804
2003	11213799853.2295
2004	11961988879.1109
2005	13842534944.1126
2006	14918409483.0271
2007	15550986898.3813
2008	19047174974.4882
2009	17654798898.0116
2010	19501456000
2011	21749970837.0253
2012	22661354058.9535
2013	24808270488.479
2014	25643687540.603
2015	23286700629.3188
2016	20610147967.2387
2017	23028969681.0732
2018	23726792548.2389