Year	current US$
1960	100000
1961	3700000
1962	7700000
1963	9200000
1965	14600000
1966	15900000
1967	17400000
1968	20900000
1969	21587000
1970	18839000
1971	15882000
1972	20465000
1973	25145000
1974	36352000
1975	43714000
1976	53057000
1977	54708000
1978	42135000
1979	76337000
1980	90231000
1981	73304000
1982	55111000
1983	56972000
1984	79940133.66
1985	69351630.04
1986	82773955.00999999
1987	155033308.6
1988	140834013
1989	94885040.43
1990	151625032.7
1991	105959170.2
1992	75681887.39999999
1993	62524611.370000005
1994	106664686.6
1995	164313369.8
1996	188702610.5
1997	194122539.9
1998	241875307.3
1999	179301904.9
2000	148728928
2001	165387200
2002	162672564
2003	312343430
2004	390715431
2005	280467979
2006	384655196
2007	421116193
2008	466469988
2009	786320603
2010	3055176624
2011	2971955642
2012	2402997083
2013	2648302814
2014	2843936882
2015	2176035289
2016	2518936641
2017	2790157930
2018	3204700352
2019	3239354533
2020	4380753949