Year	current US$
1970	1128065455.78804
1971	690003919.045308
1972	703059278.787686
1973	1522352141.29177
1974	2596021862.96782
1975	1823434575.30107
1976	1275842842.09523
1977	1808633486.62807
1978	903204995.677065
1979	1781190819.50381
1980	2162981199.16445
1981	1748953223.45534
1982	935381502.673628
1983	1126272978.89668
1984	743468339.145231
1985	843691167.174315
1986	631802671.862863
1987	1085695345.78157
1988	3925128391.01725
1989	1849495618.81011
1990	1778616780.42354
1991	1171441619.01838
1992	1875593311.77356
1993	1864743447.56596
1994	2585479373.11571
1995	3195301124.71812
1996	2467462614.66146
1997	2197512601.30876
1998	1687131729.35485
1999	1424548323.27954
2000	930840171.375828
2001	547342651.365381
2002	373327306.514577
2003	893691734.876407
2004	1590087004.09362
2005	2168031065.80811
2006	5843160783.63327
2007	6400270208.22585
2008	9207195015.71447
2009	6161472351.94941
2010	19329358161.747
2011	28468340249.8541
2012	19889129805.8577
2013	15782781015.1259
2014	12808442298.9971
2015	4357875057.3376
2016	4765598284.27184
2017	5308982103.43557
2018	4772801146.39651
2019	2776997259.14332
2020	3108468185.35527
2021	14313150943.3189