Year	constant 2010 US$
1960	115573868508.15
1961	121847036500.547
1962	120808873523.837
1963	114396100733.294
1964	125984766250.65
1965	139300642138.499
1966	138381639345.114
1967	142798776600.374
1968	149685248718.023
1969	164174071297.927
1970	169174227931.948
1971	178746327507.296
1972	181657062226.624
1973	186764812014.466
1974	197100011389.723
1975	197044011131.933
1976	193067167388.744
1977	206454730042.606
1978	197151622246.269
1979	217305966255.665
1980	220606374392.254
1981	209157368731.779
1982	207618683386.485
1983	216648213592.787
1984	220051190931.379
1985	208632681046.742
1986	221470636587.663
1987	227461126795.486
1988	224981952135.064
1989	208880107086.685
1990	203726588308.536
1991	222333162871.504
1992	239980394235.249
1993	259675534967.549
1994	274830720366.623
1995	267011210297.951
1996	281768091694.844
1997	304622433397.251
1998	316350941905.026
1999	305641016669.195
2000	303229512290.352
2001	289860609223.184
2002	258281789127.305
2003	281106256200.528
2004	306488951656.956
2005	333618311350.415
2006	360465082297.96
2007	392934518437.813
2008	408876787794.809
2009	384677312577.801
2010	423627422092.49
2011	449061807872.401
2012	444452545623.356
2013	455143068397.581
2014	443707073929.401
2015	455825423287.839
2016	446342760088.163
2017	458253820042.814
2018	446730617131.025