Year	current US$
1970	1239000000
1971	1320000000
1972	1097000000
1973	1113000000
1974	1040000000
1975	1774000000
1976	1741000000
1977	1895000000
1978	2293000000
1979	2820000000
1980	2896000000
1981	2796000000
1982	3184000000
1983	3867000000
1984	4188000000
1985	5331000000
1986	5170000000
1987	4138000000
1988	3831000000
1989	3765000000
1990	5472000000
1991	6382000000
1992	5189000000
1993	3962000000
1994	3898000000
1995	2614000000
1996	3695000000
1997	2762000000
1998	3020419979.0097833
1999	3457260018.792003
2000	3322729996.232316
2001	3611530025.4114
2002	4454739957.42202
2003	4723120025.301353
2004	4147469977.6954956
2005	3888669999.616223
2006	3869340002.501384
2007	3910440039.3664846
2008	5489469974.018635
2009	6145369903.674351
2010	7284319944.161925
2011	7278380053.0321865
2012	6062770053.949209
2013	7353469960.266726
2014	7340550065.755848
2015	6793229874.525221
2016	7661440026.387574
2017	8038540103.532377
2018	8160940010.808414
2019	7323099988.022821
2020	8031000078.901654
2021	9538899991.586803
2022	8334690015.634529