Year current US$ 1962 -7380952.380952381 1963 -5428571.428571428 1964 -8492063.492063493 1965 -3523809.523809524 1966 -13492063.492063493 1967 -16793650.793650795 1968 -22865079.365079366 1969 -25722222.222222224 1970 -7158730.158730159 1971 -17063492.063492063 1972 -555555.5555555555 1973 6904761.904761905 1974 -22008054.396825396 1975 -70206349.20634921 1976 -57396825.396825396 1977 -62500000 1978 -94571428.57142857 1979 -187849206.34920636 1980 -275976190.47619045 1981 -383277777.7777778 1982 -412992647.0588235 1983 -376195812.7191781 1984 -197154456.17562577 1985 -1481052.5981393238 1986 53515677.097023584 1987 10441563.952095808 1988 497591112.61904764 1989 989845822.6661617 1990 763637466.7425598 1991 876176218.6085119 1992 727943294.1411718 1993 452142645.7031474 1994 -113233108.8956089 1995 497146770.43534964 1996 239398217.14207923 1997 100173387.31598908 1998 710589187.1233711 1999 709670144.7226256 2000 709972711.37436 2001 737391727.501443 2002 1116038375.5987306 2003 1012334050.2837645 2004 1084790238.1087875 2005 1091490577.8175938 2006 1054564668.4935827 2007 1383642073.1176643 2008 1009019885.7211378 2009 1196565331.0259042 2010 823867570.9276669 2011 670262353.9685142 2012 407940683.5494673 2013 1562167545.8890188 2014 745012702.7935622 2015 924931585.0418164 2016 2355629076.775252 2017 2050638579.2428403 2018 658580471.8741525 2019 361208565.20754224 2020 1339703583.7942607 2021 492159930.12686276 2022 -2097283007.5593114 2023 904885487.1800846