Year	constant 2010 US$
1960	25882791573.716
1961	26693741468.4545
1962	27296095829.669
1963	30090453503.3035
1964	32380743633.5626
1965	32566347874.9252
1966	34749651278.4656
1967	37375453075.509
1968	36234742349.8573
1969	33579918873.9188
1970	42015000354.2365
1971	39194718114.096
1972	33751150603.3951
1973	28580827363.0252
1974	26670186525.4489
1975	25764330495.9834
1976	27919984272.6514
1977	30459438019.4707
1978	33130320954.1252
1979	40696025547.3956
1980	45575729664.5462
1981	41072550260.1203
1982	42415804834.2964
1983	49165895768.6683
1984	46663741617.082
1985	51274408210.5528
1986	55575518745.8123
1987	55529894127.7452
1988	57816328959.8599
1989	60278177332.7463
1990	61368481080.6556
1991	59883546491.761
1992	72713298728.8185
1993	85947554400.9371
1994	95342426028.8795
1995	115450166488.318
1996	117595814925.177
1997	127792753743.786
1998	145910413893.85
1999	152807596984.391
2000	159552332500.172
2001	163410601191.115
2002	178743349512.219
2003	201864519335.982
2004	241554604141.476
2005	317507053314.102
2006	381590973322.825
2007	414300290392.892
2008	491149555464.227
2009	475482736058.914
2010	543212668635.999
2011	647967071538.407
2012	683908819881.659
2013	637668762218.939
2014	646072982217.597
2015	618054957508.099
2016	645121456420.406
2017	753245764595.6
2018	872640462749.73