Year	current US$
1974	49999.9988824129
1975	199999.99925494206
1976	469999.9950826172
1977	870000.0122189516
1978	2470000.0230222964
1979	4029999.9285489307
1980	6049999.874085186
1981	6680000.128224485
1982	7989999.892190097
1983	8650000.013411049
1984	8329999.931156633
1985	10850000.15236437
1986	13819999.91834164
1987	15749999.647960048
1988	14130000.026896607
1989	12130000.090226531
1990	14870000.028982762
1991	14660000.24974346
1992	18969999.896362435
1993	26419999.964535248
1994	37099999.321624644
1995	60539999.79980289
1996	75209999.48866662
1997	89190000.65140434
1998	90409999.16382141
1999	89990000.72851773
2000	103389999.9782444
2001	125480000.1438707
2002	190599999.33280045
2003	246070005.29393545
2004	289169997.3009527
2005	306629999.37124544
2006	388190004.27983695
2007	489569997.3851443
2008	559140000.0844151
2009	428129998.5833467
2010	384330000.26643276
2011	393170001.4062226
2012	341919997.98640597
2013	338300003.5267323
2014	333080002.36563385
2015	271329999.09669167
2016	249889999.63365492
2017	257439997.4476546
2018	262739999.62396902
2019	260690000.04231927
2020	262040001.52274948
2021	280760001.78232783
2022	283300000.04358584