Year	current US$
1970	158580571.42857143
1971	163745142.85714287
1972	149990857.14285713
1973	192688626.19648615
1974	210728888.88888893
1975	258080000
1976	266695652.17391303
1977	304321111.1111111
1978	329302222.2222222
1979	421235555.5555556
1980	529504444.4444444
1981	563428888.8888888
1982	533083333.3333333
1983	579172673.4803658
1984	539571464.3722329
1985	643436075.896926
1986	631141280.5465534
1987	572028164.454516
1988	521887531.6072509
1989	524904359.444623
1990	578015240.4309363
1991	567331265.5291908
1992	519907053.66701394
1993	442751235.58484346
1994	376786470.51606286
1995	420406953.9314056
1996	463898280.75970274
1997	412720733.0779055
1998	398073904.84838533
1999	384930042.94130176
2000	383945638.22554016
2001	384414355.99446017
2002	357673252.2608854
2003	336156027.6920804
2004	383516660.67162615
2005	456319729.24221325
2006	517470118.4320383
2007	473777025.5770972
2008	612575369.3838333
2009	654174628.8571314
2010	780960635.2722965
2011	820648548.2791507
2012	826470260.7312189
2013	940617724.0323299
2014	945892940.835702
2015	952454092.3347362
2016	834186113.1007452
2017	777492756.1839322
2018	773800245.4886322
2019	743181154.1100792
2020	758469649.9924846
2021	795550013.4432961
2022	920376194.6669883
2023	666337112.1369828