Year	current US$
1960	2524060000
1961	2249060000
1962	2438370000
1963	2681360000
1964	3210130000
1965	3649250000
1966	3565100000
1967	3855280000
1968	4302540000
1969	4463480000
1970	4993580000
1971	5143940000
1972	5056550000
1973	7575520000
1974	12316850000
1975	11018780000
1976	12299690000
1977	13498710000
1978	15552660000
1979	18296810000
1980	22400110000
1981	26175660000
1982	26519870000
1983	21383070000
1984	25784310000
1985	25865420000
1986	26237200000
1987	29717810000
1988	36670980000
1989	45035003457
1990	43051390317
1991	42630287852
1992	44815930984
1993	46720892761
1994	55089829894
1995	63229777374
1996	67716448638.99999
1997	67974478980.99999
1998	66851563414.00001
1999	71931851213
2000	71574287690
2001	64425658235
2002	73731415359
2003	89818867667
2004	109948000000
2005	126186000000
2006	140757000000
2007	167231000000
2008	202489000000
2009	168599000000
2010	204750000000
2011	248595000000
2012	265750000000
2013	246750000000
2014	241428000000
2015	212947000000
2016	201105000000
2017	227518000000
2018	240911000000
2019	226955000000
2020	214735000000