Year	current US$
1970	7260000.229
1971	7260000.229
1972	13859999.66
1973	12539999.96
1974	79143551.618
1975	153665028.54009998
1976	181436956.1383
1977	280975107.43209565
1978	377669676.8161762
1979	539153399.7542168
1980	880474432.3365972
1981	966440824.9457091
1982	623691398.1840928
1983	769255042.1738389
1984	692593075.1095006
1985	761207550.1898097
1986	750127983.8844758
1987	815618332.1767749
1988	962555356.4675331
1989	1177930708.7033916
1990	934444956.0072551
1991	922193808.164604
1992	1117254702.3129418
1993	1717276295.881429
1994	1421370718.220023
1995	1421828458.7326767
1996	1355076494.8709223
1997	2174477217.5501657
1998	2368480040.6488605
1999	3510310907.7893095
2000	3545957245.887935
2001	3160893716.631832
2002	3726593198.7381554
2003	4220707226.6651096
2004	6186976664.940865
2005	18955805869.82481
2006	21736851194.575558
2007	23481311708.82418
2008	26408271129.21453
2009	25474144316.234657
2010	28237577030.66697
2011	30631270525.68811
2012	30715479030.780357
2013	32059497848.859085
2014	32691387042.889572
2015	33498437226.494644
2016	32619638344.16637
2017	36222260533.302864
2018	43254357117.81094
2019	43317950501.00253
2020	35795185503.0447
2021	41452730994.18068
2022	44236870212.215706