Year	current US$
1960	1310590000
1961	1473200000
1962	1430600000
1963	1618818000
1964	1898239000
1965	1988011000
1966	2269276000
1967	2241315000
1968	2438201000
1969	2868445000
1970	3425735000
1971	3853409000
1972	4660588000
1973	6848272000
1974	14254795000
1975	13023782000
1976	16628453000
1977	19047435000
1978	17084135000
1979	26556638173.1
1980	11500799687.6
1981	29473999778.23
1982	23592239658.030003
1983	19519274129.67
1984	22324059518.809998
1985	24059392126.238007
1986	15541642909.647001
1987	17441314737.704998
1988	17365860937.612
1989	19283562102.31
1990	25745286209.360996
1991	20521552731.585
1992	25961451257.656
1993	23371023082.44
1994	23985236545.701004
1995	27026112411.31
1996	34197064884.859997
1997	34219326122.93
1998	28505536596.329998
1999	30352078861.612003
2000	44161237172
2001	36093423400
2002	39016455970
2003	48452607193
2004	63456480636
2005	86301076917
2006	101570059080
2007	111148657444
2008	155583172456
2009	105726257075
2010	144140074372
2011	206895032805
2012	190747296471
2013	179808556406
2014	177733969996
2015	123960049009
2016	96911050783
2017	114491337688
2018	140250853157
2019	136693055491
2020	115270589713