Year	current US$
1960	4579651000
1961	4538216000
1962	4980271000
1963	5943445000
1964	6785300000
1965	7294351000
1966	7440991000
1967	7274066000
1968	8332256000
1969	9338681000
1970	10353931000
1971	7952182000
1972	10773801000
1973	16722852000
1974	33799600000
1975	27483032000
1976	33471467000
1977	37273324000
1978	35042650000
1979	55844397173.1
1980	51724781687.6
1981	76425655455.43
1982	65378071121.1
1983	55145795934.02999
1984	58700293195.602
1985	58181071309.24801
1986	36883664791.817
1987	43599271906.537
1988	44589488822.09
1989	54316685370.761
1990	69394383794.18
1991	50339119359.22
1992	52695018511.633
1993	50402329811.59999
1994	54265091881.48001
1995	60884471532.46999
1996	79860263304.4
1997	81033475689.79901
1998	61496686398.961
1999	73163543841.57999
2000	139141526681
2001	118452770127
2002	126684255676
2003	132469370797
2004	174291203170
2005	204350495710
2006	248783473840
2007	322728180195
2008	477835552739
2009	295880869664
2010	420742247333
2011	431967891756
2012	480919384270
2013	447910340169
2014	407287558064
2015	259607784435
2016	219152766803
2017	258074745992
2018	334464425152
2019	316557803799
2020	226844459989