Year current US$ 1965 740000.009536743 1966 899999.976158142 1967 1039999.96185303 1968 699999.988079071 1969 1000000 1970 1000000 1975 1000000 1976 5000000 1977 16000000 1978 35000000 1979 43000000 1980 41000000 1981 31000000 1982 22000000 1983 23000000 1984 40000000 1985 36000000 1986 38000000 1987 34000000 1988 18000000 1989 18000000 1990 12000000 1991 22000000 1992 71000000 1993 34000000 1994 13000000 1995 21000000 1996 18000000 1997 48000000 1998 12060000.4196167 1999 26579999.9237061 2000 46080001.8310547 2001 29040000.915527303 2002 48290000.9155273 2003 63599998.4741211 2004 81769996.6430664 2005 110790000.915527 2006 309910003.66210896 2007 165289993.28613302 2008 226490005.493164 2009 231860000.61035198 2010 228199996.94824198 2011 275119995.11718804 2012 302769989.013672 2013 312820007.324219 2014 321059997.558594 2015 266799987.792969 2016 367970001.220703 2017 495149993.89648396 2018 479140014.64843804 2019 318410003.66210896 2020 391790008.544922 2021 399980010.986328 2022 408519989.013672