Year	current US$
1960	712700000
1961	788290000
1962	813210000
1963	908620000
1964	998830000
1965	1098420000
1966	1177410000
1967	1376030000
1968	1450980000
1969	1621780000
1970	1841500000
1971	2097880000
1972	2601990000
1973	3696910000
1974	4866000000
1975	5339320000
1976	6137730000
1977	7020840000
1978	8076610000
1979	9724070000
1980	12056000000
1981	11180110000
1982	10122450000
1983	10090180000
1984	10720070000
1985	11218430000
1986	10155082295
1987	11123450361
1988	11969325906
1989	11089982980
1990	5870684700
1991	4318146301
1992	4366845342
1993	4892100000
1994	6159600000
1995	8061100000
1996	7644400000
1997	8386600000
1998	8314570000
1999	8508980000
2000	10358234899
2001	11379104371
2002	13914065466
2003	17672464454
2004	23534509327
2005	27645024988
2006	32479394839
2007	40559063802
2008	49699647692
2009	40673434256
2010	49525915203
2011	63033085120
2012	57867437160
2013	65854841950.99999
2014	69724787380
2015	60594856266
2016	63533985145
2017	70761235997
2018	79660014966
2019	76867104077
2020	70720720245