Year current US$ 1960 9788125.823933164 1961 14678259.001947248 1962 12652348.784967264 1963 11019646.603095481 1964 13875994.673309391 1965 16322466.9665219 1966 10989971.415358687 1967 2032561.3555180836 1968 20903012.931238085 1969 11473939.890592793 1970 15808966.379422821 1971 22410146.350771796 1972 22007387.30916988 1973 35191369.51567542 1974 -274269.71212706185 1975 -18888754.7133187 1976 21774943.474274635 1977 12344732.83906455 1978 2573149.6624993477 1979 -20365444.336261336 1980 -70555599.66509774 1981 -6509532.409558786 1982 -40239600.06628358 1983 -4180023.5379675766 1984 1272189.082475286 1985 49785986.920982845 1986 26297559.166071855 1987 23118651.367283557 1988 40480349.48968421 1989 69057764.54423839 1990 56187948.91684634 1991 56638102.40110072 1992 41013737.33144081 1993 64771976.8084186 1994 85856622.50954735 1995 90179589.1869646 1996 31557860.06138217 1997 75302906.24877949 1998 51046545.28753643 1999 81926526.44774045 2000 56446426.818999246 2001 44998224.892005496 2002 54203377.183119506 2003 75913305.22650053 2004 19900054.164877683 2005 23310697.11264115 2006 36112221.71577055 2007 22726564.366282277 2008 5944169.857150304 2009 123390838.91462372 2010 215836415.66158664 2011 228930662.17661503 2012 21958399.4274105 2013 -15867596.611087924 2014 42581646.332217485 2015 47409413.74268951 2016 28771242.742949713 2017 61699101.922090806 2018 -31096817.43618212 2019 -91816602.87378827 2020 -20412322.56854473 2021 -49855356.69419911 2022 -135815932.42427185 2023 -145670204.25241005