Year	current US$
1969	121529817.34068455
1970	121529817.34068455
1971	101778311.36753817
1972	133913177.39143828
1973	378549373.5638783
1974	1219876888.1181607
1975	987489770.6187865
1976	144098275.02356607
1977	578765387.3218548
1978	958168385.4862704
1979	1064032157.6470044
1980	2241071675.2009797
1981	1807309314.964892
1982	1284789551.482168
1983	1566154422.8199131
1984	903002423.0566635
1985	1233143720.9117308
1986	-574185024.1062013
1987	-1422756035.269505
1988	828434949.339509
1989	1642886825.5982275
1990	1004743674.2451136
1991	2733738078.1280665
1992	1767716931.728802
1993	1040889936.0803604
1994	714386964.2344377
1995	739901181.0633496
1996	375080012.9748647
1997	-243110836.9305097
1998	674813327.4682878
1999	903552632.3201106
2000	1581614788.4118521
2001	2541785231.1404543
2002	3259711427.563851
2003	4380801208.347182
2004	6204180925.4988165
2005	6788565275.422992
2006	6394461561.782016
2007	7940452343.980003
2008	9915999306.31685
2009	10962729755.415804
2010	11488616074.348309
2011	15717237090.635056
2012	17967300259.50408
2013	20750626193.800053
2014	19830509970.107975
2015	16819365357.527487
2016	14921730948.932562
2017	12836048244.051975
2018	10599783906.162003
2019	9203479296.360817
2020	6363348814.609613
2021	7501954623.12793
2022	10632017083.703136
2023	10928550107.20359