Year	current US$
1975	71939720.00445138
1976	80615020.17015405
1977	100420460.40256429
1978	134515556.85338134
1979	244353741.95987955
1980	291035414.5259598
1981	309774369.6780774
1982	278052682.1441292
1983	338856045.5695528
1984	314586017.0323132
1985	361511584.7465026
1986	504777702.98216575
1987	760598512.95208
1988	1317492012.1615267
1989	1464177147.2935379
1990	1578717381.2533145
1991	1774152323.4370687
1992	1716574435.0567017
1993	1819608431.4352632
1994	1248913643.7483132
1995	1372263971.2914844
1996	1789463698.9373093
1997	1882173735.4314184
1998	1941439321.5140984
1999	2176760665.3521657
2000	2283000396.4354496
2001	2382115455.230103
2002	1709683038.4107375
2003	2680006139.1006694
2004	3069757588.551084
2005	4010880268.205783
2006	4101204700.393142
2007	4704137202.673666
2008	3979906610.289671
2009	2774886306.51157
2010	4048593444.116059
2011	5834970856.936245
2012	5128285227.17965
2013	4270456293.51791
2014	5637712331.284671
2015	4236112728.380801
2016	4543837326.937753
2017	4959778490.724349
2018	4569577417.698128
2019	4343932624.493723
2020	3610264453.6553993
2021	5793656548.12682
2022	6814149779.582327