Year	current US$
1972	5450000.036507845
1973	6520000.012591478
1974	9970000.02115965
1975	26720000.01370909
1976	16059999.905526638
1977	16130000.216886403
1978	17630000.179633494
1979	17260000.10222196
1980	16260000.05751849
1981	17689999.94546174
1982	15630000.114440907
1983	15499999.707564704
1984	15770000.06847083
1985	14599999.94933605
1986	14360000.092536205
1987	18159999.756142493
1988	18609999.975189567
1989	18990000.03188848
1990	23969999.685883522
1991	21280000.014230613
1992	24719999.896362416
1993	27090000.212192547
1994	27650000.169873238
1995	36319999.79168176
1996	39290000.80749393
1997	46040000.049397334
1998	39329999.89017844
1999	44920000.089332476
2000	38129999.89278616
2001	39860000.11488795
2002	38719999.90008772
2003	49769999.84309076
2004	62249999.59580604
2005	74499999.43375579
2006	84379999.15517871
2007	96149999.65764585
2008	105059998.11552463
2009	105629999.17380518
2010	123630000.323057
2011	138409998.48395583
2012	152770001.47476798
2013	143120001.74820417
2014	173350000.92536214
2015	150749998.5024332
2016	146740002.01560554
2017	141670001.5608221
2018	183899998.8418074
2019	165449997.39900234
2020	180420001.14731494
2021	204259999.2230535
2022	124039998.60398471