Year	current US$
1970	717000000
1971	805000000
1972	865000000
1973	832000000
1974	1064000000
1975	415000000
1976	202000000
1977	210000000
1978	225000000
1979	244000000
1980	186000000
1981	179000000
1982	164000000
1983	251000000
1984	237000000
1985	215000000
1986	457000000
1987	306000000
1988	184000000
1989	266000000
1990	320000000
1991	274000000
1992	265000000
1993	376000000
1994	471000000
1995	373000000
1996	249000000
1997	209000000
1998	300040005.54978853
1999	521659995.1982498
2000	458590000.06131816
2001	520849992.23239684
2002	646460005.0188601
2003	623940007.3364382
2004	463460001.83932483
2005	602390003.4297254
2006	670040005.3951893
2007	640990001.0824206
2008	757650001.3954936
2009	770539999.0919975
2010	832439996.3468316
2011	843310004.0443242
2012	906600006.4313416
2013	998190015.9120576
2014	995099996.7455862
2015	921099994.9947004
2016	1002020010.7097638
2017	1167240019.9770923
2018	1030600007.8916541
2019	890089997.1723557
2020	1147120001.1670587
2021	1134229995.4891212
2022	1160310013.934969