Year	current US$
1960	794000000
1961	647000000
1962	893000000
1963	1172000000
1964	1297000000
1965	1241809981.82297
1966	979570011.6157529
1967	1175930021.28601
1968	884219987.869263
1969	711000000
1970	668000000
1971	668000000
1972	386000000
1973	391000000
1974	293000000
1975	805000000
1976	475000000
1977	292000000
1978	384000000
1979	337000000
1980	364000000
1981	429000000
1982	402000000
1983	399000000
1984	453000000
1985	446000000
1986	468000000
1987	359000000
1988	635000000
1989	567000000
1990	460000000
1991	421000000
1992	315000000
1993	307000000
1994	215000000
1995	36000000
1996	-33000000
1997	9000000
1998	-17450001.92523
1999	250820000.365376
2000	179970000.17762202
2001	863660012.207925
2002	667159978.538752
2003	711040006.548166
2004	1000469977.52786
2005	1859930057.40643
2006	2165899958.8042502
2007	2237180036.4702897
2008	2813130088.0387397
2009	3906599907.83595
2010	4426720041.97538
2011	4643149955.98793
2012	3730810075.75989
2013	2645259921.14283
2014	3040639981.2698402
2015	2839509948.80497
2016	2562190014.67526
2017	2287059976.20523
2018	2036160007.37995
2019	2394169949.11432
2020	1849339970.32046
2021	2532249960.1841
2022	2194040005.9707475