Year	current US$
1972	2239999.9909102907
1973	3819999.922066927
1974	4659999.9647587575
1975	10329999.89017845
1976	12529999.941587444
1977	10810000.153258443
1978	11350000.329315662
1979	15700000.394135714
1980	12720000.01557171
1981	11500000.013038514
1982	10680000.083521007
1983	12589999.841526149
1984	13250000.147148967
1985	12750000.117346637
1986	12349999.899044622
1987	22389999.652281396
1988	15210000.051185502
1989	15090000.063180923
1990	22919999.955222014
1991	17240000.121295452
1992	24280000.23774802
1993	26100000.416859984
1994	19939999.90448355
1995	29190000.098198645
1996	31240000.32991171
1997	32199999.911710624
1998	27779999.57278371
1999	30350000.306963913
2000	25689999.917522084
2001	25159999.96475875
2002	22799999.95045364
2003	30289999.790489674
2004	37109999.75353481
2005	37439999.70331782
2006	54219999.47540464
2007	57400000.736117415
2008	65899998.63319101
2009	77299999.71948569
2010	85539999.71225843
2011	92469998.99111687
2012	115740000.0933558
2013	112500001.3913959
2014	136300001.06431556
2015	130289999.49991694
2016	120300001.53370199
2017	109060000.71577731
2018	135840000.0818075
2019	115379997.79917298
2020	135609999.92676082
2021	226999998.52478498
2022	95989998.93292788