Year	current US$
1975	296569530000
1976	365679270000
1977	359049980000
1978	537565830000
1979	595506020000
1980	796034940000
1981	878659140000
1982	791111450000
1983	1373464460000
1984	1731901260000
1985	2444773220000
1986	4047633590000
1987	6788840630000
1988	6242796358000
1989	7649279490000
1990	6151876650000
1991	4963842550000
1992	4846356450000
1993	6920514160000
1994	8220096170000
1995	9464785490000
1996	11557189430000
1997	16494939730000
1998	20931534350000
1999	30194016940000
2000	44628142470000
2001	32619563120000
2002	26665052130000
2003	27348903470000
2004	33876257400000
2005	42942868560000
2006	54740489530000
2007	78986201710000
2008	77318149867000
2009	55861579454455
2010	58445327607933.805
2011	63376340380000
2012	50476627200000
2013	53169036860000
2014	60110740147737.55
2015	59341731090000
2016	56550705801752.09
2017	56995622307157.97
2018	67615274000000
2019	53050540470000
2020	65583931210000
2021	74108443150000
2022	66091391150000