Year US Dollars adjusted for inflation) 1960 115573868508.14998 1961 121847036500.547 1962 120808873523.83699 1963 114396100733.29399 1964 125984766250.65001 1965 139300642138.49902 1966 138381639345.11401 1967 142798776600.37399 1968 149685248718.02301 1969 164174071297.92703 1970 169174227931.948 1971 178746327507.29602 1972 181657062226.62399 1973 186764812014.466 1974 197100011389.72302 1975 197044011131.93301 1976 193067167388.74402 1977 206454730042.60605 1978 197151622246.26898 1979 217305966255.66498 1980 226327993530.55493 1981 213450998966.35498 1982 202869851896.91901 1983 210731309048.02893 1984 215392208305.70599 1985 199051096781.77203 1986 214727922914.32993 1987 220976490720.55496 1988 215326332052.41602 1989 199185061978.08603 1990 194406693571.09 1991 219037458045.20602 1992 245192227489.58203 1993 259675534967.54898 1994 274830720366.62305 1995 267011210297.95102 1996 281768091694.84399 1997 304622433397.25104 1998 316350941905.026 1999 305641016669.19501 2000 303229512290.35199 2001 289860609223.18396 2002 258281789127.30496 2003 281106256200.52802 2004 306488951656.95599 2005 333618311350.41498 2006 360465082297.95996 2007 392934518437.81299 2008 408876787794.8089 2009 384677312577.80084 2010 423627422092.49011 2011 449061807872.40094 2012 444452545623.35602 2013 455143068397.58093 2014 443707073929.401 2015 455825423287.83899 2016 447517812725.51996 2017 460334377833.47101