Year	current US$
1970	775110000.8338691
1971	866450000.9883194
1972	945390002.0048021
1973	1165960003.323853
1974	1571359997.9393182
1975	2032310006.1640143
1976	1933929999.6383483
1977	2173129999.322818
1978	2922910008.938983
1979	3952070011.9268136
1980	4470730009.099469
1981	4414609990.600496
1982	4446909983.497112
1983	4336449995.104223
1984	4757539990.806952
1985	5477819990.4784565
1986	6912869990.924375
1987	7724510006.798432
1988	9439299997.843801
1989	9440999980.079008
1990	11352350008.312614
1991	11269760025.948284
1992	12230529953.803867
1993	10861399980.474264
1994	11880569974.225016
1995	11258639987.297358
1996	10467110005.987808
1997	9081880003.411322
1998	9220990013.765171
1999	8641099991.669878
2000	8537790012.07277
2001	9782540000.67711
2002	12621489936.95155
2003	19154499972.382565
2004	18958299941.996113
2005	20166300061.633812
2006	22155379966.53654
2007	24517420041.523872
2008	27483260087.123158
2009	29353609991.144394
2010	32711600091.515114
2011	33235960027.109837
2012	29603240106.144928
2013	26995519953.561954
2014	25727810064.099735
2015	23611089897.962296
2016	23948970026.431606
2017	24973430056.335407
2018	26052250026.667496
2019	25354529935.944824
2020	27268130068.04698
2021	29535230039.268738
2022	26568480069.477116