Year	current US$
1970	25870000.23946166
1971	24720000.46819444
1972	1630000.1703202669
1973	32320000.274106912
1974	9989999.802783137
1975	21580000.13791025
1976	38800000.65453355
1977	22650000.371038917
1978	10249999.942258
1979	7370000.163093216
1980	28540000.37908558
1981	37839999.418705665
1982	93200001.99601054
1983	128909999.8306483
1984	185660000.69491613
1985	200399999.46206817
1986	372769997.5632133
1987	467060007.9745057
1988	544309993.0565802
1989	356169996.6751039
1990	384140005.96292275
1991	406710001.67727464
1992	588559998.944401
1993	436430001.2290474
1994	772459980.6740878
1995	167750003.36952505
1996	143960001.53385097
1997	64700000.36992137
1998	36509999.96438618
1999	53750001.18836758
2000	26349999.859929074
2001	69309999.65406951
2002	63229999.59439043
2003	122799999.69340861
2004	182429999.39806756
2005	1064990023.5626844
2006	601649990.9758565
2007	694229995.7461653
2008	1096899988.8896945
2009	173169999.74474308
2010	125880002.3198128
2011	126729999.1548061
2012	73229999.51988454
2013	88680000.42438513
2014	129660000.90539461
2015	206939999.24138185
2016	141449999.4814396
2017	384019992.0237061
2018	216040002.76327145
2019	251010000.23633248
2020	288490001.0302663
2021	806560022.4435333
2022	321919998.3645232