Year	current US$
1970	2099999.966099858
1971	5679999.906569724
1972	6649999.994784603
1973	4390000.024810432
1974	11140000.144019727
1975	12500000.301748525
1976	18940000.347793125
1977	14439999.4537234
1978	43259998.88218943
1979	39049999.71762301
1980	29159999.711439103
1981	24019999.962300062
1982	15669999.84905124
1983	10400000.173598524
1984	7680000.131949789
1985	20659999.616444126
1986	32359999.075531967
1987	32990000.575780846
1988	26459999.4421005
1989	23539999.626576956
1990	22570000.313222393
1991	19520000.1001358
1992	35919999.78758392
1993	27640000.123530634
1994	43080000.478774376
1995	55389998.996630326
1996	93500000.70407984
1997	102840002.59824096
1998	60329999.59215519
1999	95069998.18608168
2000	64679998.75545503
2001	112970001.10149387
2002	106969998.65025279
2003	86060002.04756847
2004	133910001.01715323
2005	149770001.9329787
2006	117829999.15629627
2007	98530000.20980836
2008	136849996.35815626
2009	128320002.00450426
2010	119220001.34922561
2011	123059998.83264309
2012	89670003.89099129
2013	73309998.91832465
2014	57019999.966025434
2015	25370000.15936794
2016	21069999.728351776
2017	42580000.48622492
2018	44419999.450445205
2019	34179999.39620496
2020	30519999.53761693
2021	31640000.77359383
2022	24120000.578463048