Year	current US$
1970	4079999.888315794
1971	2409999.942407011
1972	4719999.79019165
1973	9149999.924004072
1974	12109999.615699079
1975	16920000.284910243
1976	11619999.8855591
1977	16290000.475943116
1978	8800000.138580797
1979	10060000.18119812
1980	9839999.705553062
1981	4710000.02138317
1982	7569999.823346736
1983	10780000.109225523
1984	4249999.972060319
1985	6469999.788329006
1986	15780000.032857038
1987	21949999.788776085
1988	28839999.794959977
1989	13739999.78601932
1990	51970000.44584283
1991	50969999.7901916
1992	41239999.58485362
1993	26320000.121369954
1994	35500000.92200934
1995	51989999.06517569
1996	66729998.99089346
1997	58859999.66412779
1998	16009999.919682741
1999	18169999.95522202
2000	17859999.96587634
2001	10709999.924525624
2002	14169999.824836856
2003	19750000.327825528
2004	30719999.030232385
2005	18070000.4398823
2006	294450000.28423965
2007	34020000.26218592
2008	34339999.48576096
2009	38660000.40806824
2010	36719999.38413498
2011	89530001.46150589
2012	101739998.51197003
2013	142749999.5306134
2014	166149998.99268147
2015	106119999.37891963
2016	142649999.12679192
2017	159690000.1168251
2018	199769999.10175794
2019	172020003.97443777
2020	185930001.31845468
2021	224110005.1403045
2022	162120000.66041955