Year	current US$
1977	25580000.00938773
1980	51980000.33572316
1981	38749999.6125698
1982	40040000.25428837
1983	47159999.89397828
1984	54100000.834092505
1985	46069999.89971524
1986	30239999.58112836
1987	30869999.68625605
1988	38030000.18000604
1989	46990000.057965554
1990	58970000.07331375
1991	51590000.28483569
1992	49230000.1233816
1993	50490000.540390626
1994	83299999.58910052
1995	94499999.72805382
1996	94580000.19378962
1997	91210000.6286055
1998	87860000.37752092
1999	75450000.11101365
2000	56170000.44509769
2001	101260000.73365867
2002	123319999.84383593
2003	110219999.8106808
2004	85929999.79853627
2005	90709999.5687604
2006	92470000.14781953
2007	96950000.19669537
2008	113039999.5446205
2009	116610001.08718877
2010	128039999.82774262
2011	119410000.4732609
2012	120649742.40853913
2013	122134725.39186473
2014	115369966.44735333
2015	104994225.14438632
2016	83574953.39214802
2017	64070752.83676388
2018	69648530.18522261
2019	101409748.25620651
2020	110693049.52025415
2021	112899689.28694725
2022	122904080.51013948