Year	current US$
1960	42300000
1961	40600000
1963	60400000
1964	67200000
1965	103600000
1966	102300000
1967	114730000
1968	142780000
1969	161100000
1970	183250000
1971	244000000
1972	354440000
1973	608360000
1981	813996753.6
1982	718481863.9
1983	571817574.8
1984	433572650.59999996
1985	399836942.29999995
1986	431538479.1
1987	500188740.1
1988	639228122.8000001
1989	475747142.3
1990	456391858.8
1991	552610099.2
1992	580566055.7
1993	635429778
1994	638800469
1995	715653730.4
1996	1153038480
1997	711386000
1998	718852000
1999	676560000
2000	664569994
2001	824910200
2002	988636677
2003	1449569703
2004	1689932166
2005	1807223727
2006	2214224128
2007	2711986501
2008	3397164928
2009	3407427431
2010	3839937986
2011	5385407679
2012	5616582222
2013	5168726440
2014	4548655410
2015	3981034480
2016	3929848308
2017	4025709337
2018	3829734410
2019	4828904397
2020	4082622798