Year	current US$
1960	13200000
1961	21300000
1962	16700000
1963	22500000
1964	26500000
1965	27100000
1966	23800000
1967	26900000
1968	30500000
1969	32781999.999999996
1970	29696000
1971	27678000
1972	35754000
1973	39509000
1974	37540000
1975	47768000
1981	71254545.44999999
1982	37700909.09
1983	109636363.6
1984	84667213.89
1985	45668409.36
1986	49676035
1987	51958957.94
1988	55933824.12
1989	69345272.39
1990	88821770.57
1991	94136783.72
1992	77171342
1993	66790943.70999999
1994	77665985.47
1995	117940594.7
1996	117082315.6
1997	93308822.02
1998	120690106.1
1999	98120427.81
2000	91961205
2001	77442404
2002	63546101
2003	91876898
2004	1303093738
2005	2049568510
2006	2365396078
2007	2357902706
2008	3709224320
2009	2176094172
2010	2752443955
2011	3685239800
2012	3107196505
2013	2993606967
2014	2974949854
2015	2223381340
2016	1570412629
2017	1217609165
2018	1649915852
2019	1260840802
2020	1455814654