Year US Dollars adjusted for inflation) 1960 199233335311.04703 1961 204185489129.55701 1962 206832708442.16 1963 219685868796.25897 1964 235017138629.72403 1965 249079271685.86301 1966 255013563382.02112 1967 271085501763.94501 1968 284899661266.53802 1969 304968445514.78796 1970 326841338993.58698 1971 339927838396.43195 1972 353228164174.95801 1973 362460910647.29291 1974 377331193579.5769 1975 382426440333.90295 1976 392323430718.52197 1977 406436784541.45886 1978 410081589264.55499 1979 426663296230.32495 1980 439609141781.48712 1981 454282671927.02289 1982 469401741440.89612 1983 458980347967.63202 1984 480006879252.19812 1985 505203431376.54999 1986 525690112039.62799 1987 538860353331.04724 1988 569473298287.26794 1989 591498228010.37219 1990 612582484286.09119 1991 610208442396.41003 1992 612909321559.94495 1993 637665212484.22607 1994 663034939582.03796 1995 688424992380.96008 1996 715126459415.51794 1997 743491381828.94092 1998 777519044571.68994 1999 816535447394.94702 2000 848732984009.72485 2001 865139889945.94568 2002 899771632525.69189 2003 926636518197.17676 2004 963712223078.42273 2005 994457691605.88293 2006 1022642934821.48999 2007 1061271523267.55994 2008 1100090360276.03003 2009 1121242097879.43018 2010 1144260547872.81006 2011 1172307576320.87012 2012 1217933084117.13989 2013 1250080212993.16968 2014 1282061484148.12988 2015 1312204498894.68994 2016 1349304594617.26001 2017 1375718249724.10034