Year	current US$
1960	180500000
1961	238500000
1962	256300000
1963	284000000
1964	273200000
1965	207900000
1966	222500000
1967	213200000
1968	257600000.00000003
1969	255983000
1970	287534000
1971	331492000
1972	338610000
1973	436056000
1974	710722000
1975	1033411000
1976	981013000
1977	1078527000
1978	875472000
1979	918647000
1980	1575934000
1981	1550976000
1982	1274539000
1983	1354528000
1984	1277907265
1985	920436438.9
1986	963562000
1987	1055337890
1988	1127959636
1989	1340256070
1990	1304858158
1991	1400844458
1992	1261486257
1993	1153201117
1994	1151644433
1995	1262588680
1996	1298452378
1997	1510656753
1998	1604828304
1999	1576995140
2000	1225773490
2001	1688604194
2002	1647028755
2003	2495558670
2004	4055234407
2005	6689889999
2006	8049576000
2007	8760778952
2008	9332468005
2009	9656036997
2010	10001709384
2011	9227178000
2012	9475018000
2013	9918068000
2014	9211300000
2015	9508653000
2016	5662298000
2017	9163003922
2018	7850068331
2019	8787545669
2020	9129868629