Year	current US$
1970	3880000.015720728
1971	8789999.991655348
1972	15099999.824538825
1973	18010000.08918345
1974	31740000.098943677
1975	40860000.04410745
1976	44399999.8643994
1977	77040001.28619367
1978	94130000.08463863
1979	117230001.04725367
1980	123630002.3458898
1981	117559998.05033219
1982	168259998.12781817
1983	167089997.3288178
1984	146399998.07253474
1985	172329997.9362637
1986	262289999.6135383
1987	257110001.3777613
1988	309660004.39785427
1989	285539995.4635652
1990	408019997.224212
1991	408339996.2484837
1992	436799995.5434353
1993	340780002.359301
1994	387460000.347346
1995	399770001.6200544
1996	428820000.88505435
1997	397490000.0244378
1998	377550002.83196574
1999	352590002.29462993
2000	329179998.755455
2001	347269998.3287604
2002	458019996.78276485
2003	597009998.0700761
2004	639210001.4314055
2005	776300007.9095366
2006	842650001.9989905
2007	1009849994.648248
2008	1110989998.4542289
2009	961419998.2546269
2010	1094739988.8895452
2011	1177069989.2397962
2012	999600000.130013
2013	1174999999.7038393
2014	1142120000.6715956
2015	821779999.5578823
2016	795469998.1845921
2017	883660003.5503503
2018	911259993.4600298
2019	930559995.8375096
2020	879729999.0374594
2021	900920000.7338074
2022	882010002.143681