Year	current US$
1966	-3274662.0253781267
1967	-3113799.600504328
1968	-4528807.246091593
1969	-4832455.731929171
1970	-1630226.6083625732
1971	-2682811.9174651196
1972	-4130996.690705645
1973	-5472493.325618757
1974	-4543092.721080443
1975	1260035.7070956237
1976	-5943909.999357497
1977	-14888668.606758164
1978	-45031871.10600768
1979	-58603877.53545829
1980	-50295383.51047047
1981	-49870161.84547049
1982	-33063887.032596495
1983	-25600939.90127247
1984	-24232308.740539353
1985	-22689486.100474745
1986	-17588506.868837427
1987	-21773224.584417053
1988	-21567289.361449033
1989	-29029813.479986966
1990	-37035194.349734075
1991	-36069496.645021535
1992	-44695676.513917096
1993	-62259854.413100824
1994	-55515582.66211954
1995	-92162413.76365808
1996	-62405410.21374226
1997	-19713873.312074203
1998	-27391727.973992538
1999	-29481403.046153553
2000	-37286048.03472107
2001	-22599772.374320447
2002	-30809428.238274008
2003	-32491422.865656648
2004	-84115651.62840208
2005	-104950290.69200806
2006	-87544504.90767653
2007	-105293065.09479412
2008	-158342852.37931088
2009	-149149758.1796013
2010	-180208778.00955978
2011	-125757258.96016227
2012	-113445297.20142703
2013	-103220102.06079736
2014	-179306417.31109333
2015	-189428153.64758015
2016	-210786152.4696001
2017	-297071302.398432
2018	-328391383.9033284
2019	-282684742.56589186
2020	-512061164.63042164
2021	-581352977.838219
2022	-573223276.5918958
2023	-694840235.188216