Year	current US$
1974	19999.9995529652
1975	60000.000521540685
1976	49999.9988824129
1977	59999.998658895405
1978	99999.99776482578
1979	160000.00014901138
1980	209999.99344348858
1981	239999.99649822718
1982	559999.9949336052
1983	529999.9993294476
1984	480000.0060349698
1985	599999.9959021809
1986	1149999.9668449168
1987	1510000.0035017687
1988	659999.9815225598
1989	949999.9973922966
1990	1079999.9907612805
1991	940000.0199675555
1992	1469999.9969452615
1993	1990000.0039488073
1994	3169999.9086558837
1995	5650000.039488074
1996	6449999.889358876
1997	6980000.128969556
1998	5870000.150054693
1999	6539999.969303617
2000	8260000.022128227
2001	7629999.96170402
2002	13189999.930560594
2003	18010000.068694346
2004	23109999.42384659
2005	30890000.00990932
2006	42259999.28638345
2007	41070000.786334306
2008	52909999.8995662
2009	33349999.487400074
2010	33459999.876096796
2011	30700000.643730123
2012	28470000.047236674
2013	20640000.18313527
2014	29550000.4440546
2015	19519999.742507942
2016	19989999.648183588
2017	21090000.197291367
2018	21859999.386593692
2019	20929999.679327022
2020	23320000.45105815
2021	25419999.64043501
2022	27710000.13127922