Year	current US$
1972	29999.999329447783
1974	119999.997317791
1975	149999.99850988388
1976	179999.9959766863
1977	39999.99910593032
1978	99999.99962747104
1979	69999.99843537806
1980	189999.99947845913
1981	219999.9988079071
1982	199999.99925494197
1983	1219999.9969452615
1984	1939999.9678134911
1985	2389999.991282819
1986	4179999.8860806264
1987	9199999.995529655
1988	5980000.142008068
1989	9960000.4311651
1990	8729999.776929619
1991	31780000.824481204
1992	20479999.41930175
1993	15129999.784752727
1994	19100000.413134694
1995	19220000.37133696
1996	14929999.990388751
1997	17680000.269785523
1998	12849999.97913837
1999	12240000.108256934
2000	14370000.051334504
2001	14529999.731108554
2002	11859999.982640145
2003	15620000.481605535
2004	10439999.965950849
2005	6239999.96483326
2006	7279999.887570734
2007	8300000.142306085
2008	9549999.944865698
2009	8810000.196099285
2010	6589999.981224535
2011	7829999.916255476
2012	8000000.085681675
2013	8099999.798461789
2014	9229999.950155616
2015	7900000.01527369
2016	3929999.947547908
2017	3380000.092089174
2018	1920000.0371783928
2019	4079999.873414634
2020	2750000.0223517446
2021	3139999.9894201765
2022	2040000.0307708974