Year	constant 2010 US$
1960	18459157216.7409
1961	15941998861.3158
1962	3985499688.77767
1963	9439341316.03004
1964	7970999431.89284
1965	7341710090.02519
1966	6955304728.69341
1967	6734500862.36221
1968	8004120039.13477
1969	9660145239.16864
1970	10874563753.7719
1971	10046551153.7549
1972	11702575195.4121
1973	14683420236.8578
1974	19817096615.6929
1975	23073946244.9163
1976	22025130934.475
1977	26661999963.2403
1978	28759632900.8764
1979	26330795871.6699
1980	27214009136.326
1981	31649891063.4947
1982	31111843779.7842
1983	33040779286.6265
1984	33866797646.1053
1985	35797205081.6895
1986	27921821049.1835
1987	19908256643.9861
1988	20585137765.6167
1989	24043442488.0234
1990	21687184394.1432
1991	17805178091.1509
1992	18624216638.385
1993	17376393729.0736
1994	18436353643.1996
1995	18805081766.4569
1996	16304004904.964
1997	16695301500.6951
1998	17914058911.4937
1999	18217881366.8271
2000	19602440350.706
2001	21797913669.9851
2002	26855029641.9551
2003	28224636153.9789
2004	31752715673.2262
2005	33784889475.9965
2006	33278116132.2265
2007	37238211953.6335
2008	42972896594.4239
2009	48473427356.7912
2010	50654731587.9332
2011	48324613935.8565
2012	54993410658.0414
2013	60382764902.4949
2014	65454917154.5021
2015	69644031854.5044
2016	67554710896.8687
2017	63839201798.0843