Year	current US$
1970	111639999.09721313
1971	127949998.16641212
1972	154750001.00582832
1973	217239998.34246936
1974	304410000.4825743
1975	383780002.310872
1976	530360003.66508925
1977	501979998.30544
1978	689039999.3080648
1979	702999995.6935649
1980	963839999.7632947
1981	974460000.0977514
1982	858759994.8793645
1983	988150002.6080762
1984	954159992.8736691
1985	814800001.3828278
1986	1061470009.1481211
1987	1124059999.1083143
1988	1091730007.0710485
1989	1216410001.5163424
1990	1653100002.1472578
1991	1579980003.7741656
1992	1504920008.540154
1993	1519599990.7553205
1994	1549210013.6131058
1995	1493150004.167111
1996	1487200009.658933
1997	1318890013.7543674
1998	1359380005.091429
1999	1252740018.486977
2000	1161630006.1941144
2001	1062489996.0458272
2002	1254780016.0646443
2003	1308230006.4265742
2004	1402869996.0708618
2005	1176869986.7725382
2006	1316359986.3052373
2007	1779999986.648559
2008	2545800012.588502
2009	2218199995.040893
2010	2517799983.9782715
2011	2428759973.5260005
2012	2356940012.9318237
2013	2353440049.1714478
2014	1915069987.773894
2015	1662529988.7657166
2016	1691080008.506775
2017	2015819998.2643132
2018	2110979979.0382395
2019	2040460012.4359126
2020	2986009951.5914907
2021	2566159978.676587