Year	current US$
1970	176190001.11334005
1971	166519999.38301718
1972	165510003.4661591
1973	184109999.78147453
1974	272049996.0314484
1975	333109999.7684362
1976	245909999.50654805
1977	228669996.58197168
1978	283640004.562214
1979	217309998.0428815
1980	226669998.4353035
1981	293430001.42835075
1982	337060001.2149661
1983	331340003.96356004
1984	418069996.5637178
1985	392010001.3259799
1986	352179998.16127133
1987	403170000.1768764
1988	507540003.6759678
1989	422899997.7111817
1990	486350005.7347121
1991	512669999.6199458
1992	468160001.4008583
1993	373139997.6667017
1994	347960001.34199864
1995	348060002.559796
1996	420049998.7937512
1997	353150000.3691763
1998	281900001.3452022
1999	254469999.41766265
2000	237679997.4273892
2001	227230000.40277824
2002	246150002.1535904
2003	45389983.80675936
2004	453689996.90935
2005	694749997.5152314
2006	594029993.7520175
2007	781919995.3265486
2008	893170012.7385561
2009	724010006.3458085
2010	1219019999.6437886
2011	944109992.2731518
2012	850450004.180893
2013	965039993.6400354
2014	794619998.810813
2015	766370000.8764868
2016	667030003.4806132
2017	717880008.3864475
2018	804249997.433275
2019	708979996.7706206
2020	685380006.7342818
2021	817910002.488643
2022	907630008.7478011