Year	constant 2010 US$
1960	19056154077.6259
1961	19230572024.1847
1962	20299036855.7923
1963	22606409605.6138
1964	27185361366.5526
1965	41980269834.6597
1966	45678619183.2783
1967	50920040105.4816
1968	55798789641.5808
1969	59751299735.7382
1970	64437082721.433
1971	62673949978.7851
1972	70916529454.158
1973	81531672327.7757
1974	88274928133.56
1975	96623639211.656
1976	96204796058.4021
1977	89309546050.1366
1978	103896892180.963
1979	124559909144.555
1980	146278955385.748
1981	170019960455.696
1982	141471277949.871
1983	101460167248.132
1984	107986052427.414
1985	116464746791.991
1986	102719084844.743
1987	102593523509.647
1988	108527948715.72
1989	115463560356.891
1990	130620135201.13
1991	141471277952.101
1992	156819499039.56
1993	154869994102.779
1994	177595443267.975
1995	113933755083.007
1996	136040279561.319
1997	156680745128.201
1998	173083136321.21
1999	182707645440.136
2000	200655796288.256
2001	178287485327.866
2002	174232570377.95
2003	176065862159.493
2004	188554345328.503
2005	200260033265.028
2006	218910336284.981
2007	231641722495.817
2008	246827669382.536
2009	218026013273.891
2010	228302086182.336
2011	246218582398.229
2012	258350808903.389
2013	249694402533.828
2014	257351007996.932
2015	270239800480.592
2016	273008183890.353
2017	268701187348.741
2018	270273225557.147