Year	current US$
1980	753000000
1981	449000000
1982	221000000
1983	107000000
1984	100000000
1985	144000000
1986	755000000
1987	1266000000
1988	1525000000
1989	1879000000
1990	1577000000
1991	1768840000
1992	1921160000
1993	2641310000
1994	5298300000
1995	11086000000
1996	1078430000
1997	7427600000
1998	4299050000
1999	6521940000
2000	5763660000
2001	4071120000
2002	2661800000
2003	7562670000
2004	13081570000
2005	20450590000
2006	27812170000
2007	45162640000
2008	28872350000
2009	37034010000
2010	57925320000
2011	51266630000
2012	46491890000
2013	41226990000
2014	27130870000
2015	19674570000
2016	23973143323.6123
2017	38092071235.1455
2018	45747320000
2019	37944140000
2020	41468860000
2021	41881150000
2022	41196010000