Year	current US$
1970	2599999.994039537
1971	5269999.966025355
1972	6450000.23208559
1973	7589999.8936802205
1974	9099999.913945794
1975	12149999.557062985
1976	10630000.464618204
1977	14459999.69169493
1978	20949999.88377096
1979	41830000.30368569
1980	22049999.21470881
1981	24960000.505670875
1982	36059999.182820335
1983	21109999.606385857
1984	42959999.78110197
1985	30109999.49648978
1986	53109999.66599041
1987	35569999.78423117
1988	48109998.08087945
1989	52609999.54678115
1990	50480000.36925085
1991	47649997.889995545
1992	46420000.7021427
1993	49600000.122562006
1994	52669999.45975831
1995	44999998.62536785
1996	46120000.76659029
1997	34289999.82960517
1998	34339999.429881565
1999	43730000.04142521
2000	34880000.90420251
2001	37909999.90701675
2002	31400001.12541016
2003	6819999.793544432
2004	46159999.2793054
2005	54309999.063611045
2006	143400002.98619267
2007	170280001.17838377
2008	157889998.3186275
2009	124060001.67131428
2010	140789999.30806458
2011	119299996.02213508
2012	95759998.50034714
2013	63410000.18268818
2014	98430003.1140446
2015	98659999.3109703
2016	66019999.86171721
2017	37900000.363588355
2018	39080000.75817113
2019	46390001.1181831
2020	75889999.15122981
2021	66909998.87883663
2022	76920000.68165357