Year	current US$
1960	3701283000
1961	3702217000
1962	3493821000
1963	4098500000
1964	5398120000
1965	5788004000
1966	5542387000
1967	5512814000
1968	6079565000
1969	6678786000
1970	7554124000
1971	8233105000
1972	10036007000
1973	12759320000
1974	18073461000
1975	26995327000
1976	29230887000
1977	37317740000
1978	41466270000
1979	36002262467.9
1980	32963265430.5
1981	81610504528
1982	74521521359.56
1983	53094299945.18
1984	47539386801.32001
1985	46240466165.450005
1986	40143317599.899994
1987	41399941251.270004
1988	47778644877.01
1989	42237159426.39
1990	44994812932.56
1991	44630768913.1
1992	53587511721.020004
1993	51830217911.09999
1994	46478485663.1
1995	53947690038.600006
1996	60806126764.8
1997	63105804911.72
1998	64923687434.3
1999	59125694673.42999
2000	80823622620
2001	92230110978
2002	90353809326
2003	98219028032
2004	130859287316
2005	133740703512
2006	160800368574
2007	258535151165
2008	321955637528
2009	299824667683
2010	338095087612
2011	322810801033
2012	350555044680
2013	375161078135
2014	367891858419
2015	311496152691
2016	270393733271
2017	284258496925
2018	301464047669
2019	301511562875
2020	277003589130