Year current US$ 1962 283588004.7189714 1963 327045370.34139127 1964 391754531.0341274 1965 473990586.0488624 1966 588152375.7582148 1967 625152521.4598264 1968 568193545.2625133 1969 511387589.06961524 1970 521840441.24116975 1971 617124681.7721745 1972 769406629.3286264 1973 1036414374.4349002 1974 1416856817.9997818 1975 1605731873.4720256 1976 1726806754.731457 1977 1967427323.9465144 1978 2388696367.349452 1979 2928053419.870352 1980 3466346771.1764326 1981 3688744665.0502143 1982 3474738763.1102433 1983 2932963371.417007 1984 2803748673.0198154 1985 2833642771.2989664 1986 3409947710.1439176 1987 4622248957.276822 1988 5769334076.842773 1989 6022939051.507038 1990 6221529353.777481 1991 6409375087.153851 1992 6809644127.343934 1993 6773344362.900449 1994 6718014871.292451 1995 6708067904.398927 1996 7204977231.513913 1997 7627711287.630341 1998 7967824759.405083 1999 8395884831.297768 2000 8923052942.49585 2001 8768104508.53654 2002 8840258979.277367 2003 9671641379.51775 2004 12165877915.261423 2005 15146325852.141743 2006 16673487876.98805 2007 19658530375.412174 2008 16641900223.0439 2009 13889813535.563395 2010 12090871617.643093 2011 12559577147.798977 2012 13634248611.218431 2013 15924028272.28035 2014 16436679969.876352 2015 17462374117.78005 2016 19695751009.646576 2017 21445082222.65007 2018 25607612099.196167 2019 27100022158.98344 2020 24139461188.634254 2021 24960233008.747627 2022 28241648653.912476 2023 31424835068.623714