Year	current US$
1960	2478690000
1961	2672900000
1962	2730601000
1963	3538618000
1964	4395139000
1965	4466211000
1966	5354976000
1967	5119747000
1968	5888871000
1969	6931840000
1970	7704948000
1971	7665462000
1972	7938338000
1973	11180288000
1974	19444819000
1975	15609387000
1976	19604688000
1977	22729227000
1978	20217250000
1979	29946982173.1
1980	15067345687.6
1981	43993395952.509995
1982	37698910456.53999
1983	32626249026.849995
1984	36634263709.591995
1985	38694294958.61801
1986	27539273491.447
1987	32299452634.526997
1988	32879324421.269997
1989	37389767075.631004
1990	41736128018.38999
1991	26935742450.149998
1992	32424383966.64
1993	29193022966.03
1994	29752282263.980007
1995	34187042276.940002
1996	42210003199.84
1997	43699783891.099
1998	39623208522.41101
1999	45944839039.402
2000	91838561363
2001	78745351994
2002	82806492421
2003	90995162604
2004	119737911946
2005	148702290187
2006	177296647667
2007	216528924954
2008	307065274868
2009	207078267707
2010	275878435178
2011	365064459597
2012	366988499347
2013	363840955888
2014	354789058047
2015	233868663302
2016	199703021552
2017	238023492398
2018	302758280101
2019	288175800024
2020	223684495833