Year	current US$
1971	160000.00014901158
1972	519999.9883770951
1973	1189999.9659508467
1974	1010000.0146776435
1975	3009999.9476224137
1976	2019999.9883770943
1977	1430000.0034272654
1978	559999.9930709606
1979	4800000.226125125
1980	11119999.645277811
1981	14829999.726265619
1982	14090000.558644537
1983	13720000.253990293
1984	10790000.084787602
1985	15670000.31284987
1986	21680000.055581294
1987	30099999.735131823
1988	30489999.85679976
1989	39410000.39689248
1990	74039999.03611827
1991	157259996.57437205
1992	60759999.42608173
1993	73690000.92893843
1994	59820000.11205673
1995	71699999.8539687
1996	62570000.002160706
1997	70559999.35045838
1998	67380000.06414957
1999	75989999.64818354
2000	52249999.56227838
2001	51630000.28766697
2002	43100000.293925375
2003	50569999.93138013
2004	98019999.16695064
2005	44769999.45938589
2006	52470000.50544737
2007	58560000.866651535
2008	76619999.84830622
2009	56939999.122172534
2010	60660000.66883859
2011	59650000.086054176
2012	41250000.64074995
2013	48729999.05981125
2014	63070000.000298046
2015	35819999.48993329
2016	25700000.35688283
2017	34010000.36299235
2018	22680000.04068017
2019	24950000.187382113
2020	17630000.349134207
2021	13849999.81708824
2022	11930000.2194941