Year	constant 2010 US$
1960	24143276176.6031
1961	24704405736.3755
1962	27111891154.5325
1963	28287175157.7123
1964	30704089144.085
1965	32816347926.2773
1966	34976528055.1805
1967	38037093198.3693
1968	42049165225.7104
1969	46548581778.9892
1970	51462855333.7584
1971	56314242933.5476
1972	59395395225.6845
1973	64697797088.562
1974	69439069391.6671
1975	73285665721.7915
1976	79335346491.2319
1977	83620760496.2022
1978	90595046455.1611
1979	98389877350.7627
1980	98298446189.2582
1981	103434939851.79
1982	111072080106.5
1983	121127172355.092
1984	130252469376.616
1985	139561493727.407
1986	152223801339.203
1987	165037831048.708
1988	180253723635.691
1989	199598118092.384
1990	219254779808.332
1991	238726935689.38
1992	255086972054.243
1993	272414171916.534
1994	296859162276.039
1995	328062273530.549
1996	352993483907.856
1997	367586831490.726
1998	323864917162.676
1999	361795441590.02
2000	394542762016.883
2001	416953171156.193
2002	453981580556.735
2003	451613798925.835
2004	452759413214.355
2005	472767440472.432
2006	494451849859.134
2007	519659170234.097
2008	526793482350.845
2009	527651482058.473
2010	550760470252.002
2011	566735751833.165
2012	577634917188.626
2013	588506575345.073
2014	598788472234.597
2015	611985613215.912
2016	627442929049.592
2017	643810663970.154
2018	662090841227.236