Year	current US$
1960	467700000
1961	508800000
1962	619300000
1963	689100000
1964	541800000
1965	575600000
1966	724300000
1967	690600000
1968	770400000
1969	756470000
1970	888580000
1971	1086000000
1972	1511780000
1973	2095600000
1974	3776780000
1975	4737820000
1976	5129860000
1977	5796850000
1978	4600370000
1979	5066070000
1980	7667500000
1981	12571454700
1982	12089813523
1983	12511630822
1984	14186753258.5
1985	15776574192.2
1986	15732797453.2
1987	19939396079.5
1988	20868394856
1989	21466290857.3
1990	27031926681
1991	24343269190.4
1992	72760383344.43
1993	75225334985.5
1994	92870383062
1995	128524237275.3
1996	136320947759.5
1997	150788019028.1
1998	136476502341.5
1999	112261543634.2
2000	141779878702
2001	136149784735
2002	158754896128
2003	207153365781
2004	270395273319
2005	334284035190
2006	438034155037
2007	597513291550
2008	769984851724
2009	505865320482
2010	635500254172
2011	843685825182
2012	866363989891
2013	893450537813
2014	828083431571
2015	623147515940
2016	597314996312
2017	712581067005
2018	753626244080
2019	757562910767
2020	728968981442