Year	current US$
1970	61916666.666666664
1971	56416666.666666664
1972	59692307.692307696
1973	54949999.99999999
1974	72050000
1975	104799999.99999999
1976	87100000
1977	103649999.99999999
1978	124549999.99999999
1979	130349999.99999999
1980	483810818.72932
1981	597245554.697012
1982	489284910.1633625
1983	321723907.6477069
1984	327521251.33794326
1985	404809055.5774301
1986	301441718.0867568
1987	348591493.9394603
1988	382606350.9804862
1989	397407112.46300185
1990	403359229.4553953
1991	483616385.8205087
1992	571417071.1215975
1993	590403258.271879
1994	653749050.1604041
1995	805135529.9268261
1996	990367125.6048738
1997	1067632994.0402622
1998	1184295841.8608046
1999	1013515568.7625508
2000	1142553733.7661812
2001	1048612128.7735263
2002	1031334463.0404463
2003	1043594779.9545302
2004	1171116242.439516
2005	1717015477.9370651
2006	2425172571.27993
2007	2920261741.927554
2008	3747236299.6888366
2009	3356489558.4045587
2010	3765759740.3439555
2011	5255882560.694436
2012	6508569913.16932
2013	7654733429.811867
2014	8248551143.270622
2015	7473316063.675832
2016	6183919001.447178
2017	6646940607.814761
2018	7049670940.665702
2019	6687101606.367583
2020	5427011548.480463
2021	5835125021.70767
2022	6985779942.11288
2023	7174737779.126094