Year	current US$
1970	607649999.137968
1971	509229998.67238104
1972	512300000.6917864
1973	538080003.047362
1974	594979999.350384
1975	702869998.7567961
1976	653629996.8138334
1977	615939999.0867823
1978	825019996.125251
1979	1037060002.6007743
1980	1171659993.4101105
1981	1470640007.229522
1982	1687899997.21013
1983	1851779999.319464
1984	2009909994.093701
1985	2321410002.9282274
1986	2583819997.096435
1987	3106800002.7313833
1988	3093610010.076314
1989	3457889990.4973807
1990	3880229992.9223957
1991	4546440000.932663
1992	4037409996.718169
1993	4098340011.563152
1994	4294389985.676855
1995	4721660003.388301
1996	4380530001.640319
1997	3548169996.710494
1998	3392810008.8629875
1999	3499160014.955328
2000	3081609991.1741905
2001	4273790001.5227513
2002	3703060009.036214
2003	4392809983.557092
2004	4556130008.414387
2005	4622430001.359433
2006	5212779983.829707
2007	4829180003.864691
2008	6171570024.954159
2009	6229170017.171651
2010	7080590043.762696
2011	7458619994.498786
2012	6197830041.56314
2013	5686019997.488708
2014	5770390026.48741
2015	5554369965.234773
2016	5642330001.4697
2017	4603109996.2666645
2018	6376650003.084912
2019	5230019995.730372
2020	6976539997.454733
2021	7299710027.394815
2022	7011149994.133039