Year US Dollars adjusted for inflation) 1960 697947698.51301 1961 722498581.15334 1962 748552617.9587 1963 796151372.03674 1964 834981909.49296 1965 812435168.86715 1966 812435168.86715 1967 920910117.86946 1968 993811403.15153 1969 1019614826.89682 1970 1149133552.97642 1971 1228297210.20435 1972 1320238654.74461 1973 1473556233.66782 1974 1511885640.31216 1975 1519901827.13724 1976 1561488822.32949 1977 1653679307.34358 1978 1684493991.55362 1979 1890420346.01229 1980 1860108269.89211 1981 1977852947.56114 1982 1859607282.04261 1983 1785964546.18026 1984 1935860987.58766 1985 1846550527.46395 1986 1989656493.87706 1987 1858040318.99996 1988 1875798629.86436 1989 2015332395.17535 1990 2132221728.89777 1991 2074651682.07802 1992 2201205463.61083 1993 2248091836.12678 1994 2362744523.3433 1995 2421813101.87764 1996 2538060153.26052 1997 2482222810.54121 1998 2514491755.78077 1999 2735766980.72918 2000 2689258981.99094 2001 2743044147.33452 2002 2830821574.15485 2003 2859129746.53114 2004 3010663631.43676 2005 3031738288.38912 2006 3087900727.57084 2007 3061633390.88777 2008 3093253763.44286 2009 3050380106.78989 2010 3140508835.9485 2011 3225464089.99005 2012 3270985505.31268 2013 3425841168.87686 2014 3617808676.11051 2015 3756891966.94786 2016 3771168285.97478 2017 3914472684.17761