Year current US$ 1960 33333333.333333332 1961 27272727.272727273 1962 -9090909.090909092 1963 6666666.666666666 1964 11764705.88235294 1965 0 1966 22222222.222222224 1967 5714285.714285714 1968 -862068.9655172414 1969 -2822580.64516129 1970 0 1971 32258064.51612903 1972 48964218.45574388 1973 1085180863.4772463 1974 54644808.7431694 1975 5366726.296958854 1976 -24530587.52271351 1977 -430385.1947493006 1978 1328241.7399966794 1979 84587905.07782598 1980 63044197.06822441 1981 -37339016.02890763 1982 -57749223.994802564 1983 29090062.834535725 1984 56804966.632673144 1985 82713828.14662503 1986 75722757.10870741 1987 213806191.85711372 1988 89351114.48312026 1989 -74799815.83378677 1990 5723036.826497841 1991 189282352.90036044 1992 152585681.35804805 1993 133049926.26409127 1994 231817058.05230337 1995 362943298.1571901 1996 262101702.33119535 1997 194500019.2229623 1998 242301490.73947015 1999 -38994285.36153025 2000 31604817.74922659 2001 140286529.50492138 2002 97917078.198409 2003 323495808.0106044 2004 424409440.56187683 2005 199916073.63166195 2006 241553197.52233985 2007 225690347.99289763 2008 826150045.8463634 2009 287818406.2793737 2010 141582873.75790003 2011 887910847.8069615 2012 413247798.2528806 2013 393731581.0360202 2014 -144707032.7077425 2015 -46632308.19127214 2016 256120443.6968819 2017 -205094739.58069912 2018 63567835.18120466 2019 -230358414.5757298 2020 550388445.4064466 2021 343741294.1801475 2022 -181635915.7698134 2023 -88965021.8526048