Year	current US$
1973	1279999.97138977
1974	13390000.3433228
1975	8119999.88555908
1976	18520000.4577637
1977	4150000.09536743
1978	8699999.80926514
1979	18290000.915527303
1980	32180000.305175804
1981	41479999.5422363
1982	26909999.8474121
1983	47380001.0681152
1984	57919998.1689453
1985	103339996.337891
1986	85699996.9482422
1987	95910003.6621094
1988	153350006.10351598
1989	53840000.1525879
1990	109199996.94824201
1991	161479995.727539
1992	290619995.11718804
1993	121279998.77929701
1994	181929992.67578098
1995	80209999.0844727
1996	51840000.1525879
1997	40700000.762939505
1998	115010002.13623
1999	82800003.0517578
2000	68989997.8637695
2001	100000000
2002	116550003.05175799
2003	149139999.38964802
2004	112650001.52587901
2005	163470001.220703
2006	194369995.117188
2007	364760009.765625
2008	447140014.64843804
2009	202470001.220703
2010	237559997.55859402
2011	198779998.779297
2012	226360000.61035198
2013	120809997.558594
2014	267850006.103516
2015	155309997.55859402
2016	333170013.42773396
2017	212869995.117188
2018	271000000
2019	200910003.66210902
2020	206949996.94824198
2021	168139999.38964802
2022	237729995.727539