Year current US$ 1960 389999.991282821 1961 899999.9910593029 1962 3860000.0180304097 1963 4789999.84450638 1964 5099999.9195337305 1965 12280000.2805889 1966 2799999.95231628 1967 7699999.9806284895 1968 2840000.06504357 1969 5130000.0548362695 1970 -1920000.06698072 1971 -1140000.01549721 1972 560000.002384186 1973 11960000.263527 1974 760000.018402934 1975 2890000.06951392 1976 1919999.94404614 1977 -4520000.20816922 1978 -109999.934211373 1979 -889999.993145466 1980 969999.97459352 1981 38140000.1570582 1982 20370000.1649559 1983 32579999.3108958 1984 5659999.97593462 1985 8629999.980330471 1986 3919999.93659556 1987 7130000.105127689 1988 15909999.782219501 1989 25840000.2270937 1990 111529999.87825799 1991 92990001.5443563 1992 137960000.48518202 1993 74429998.94544479 1994 65920001.0597706 1995 27759999.925270703 1996 81350000.64410271 1997 20469999.341294203 1998 33929999.8637289 1999 22660000.5682558 2000 21270000.0591576 2001 990000.113844872 2002 -7700000.036507839 2003 3729999.93339181 2004 4940000.0590830995 2005 -5499999.91618097 2006 -4170000.0669807196 2007 -4410000.06906688 2008 28589998.8655001 2009 10650000.1791865 2010 17130000.1144409 2011 879999.971017241 2012 -579999.9739974741 2013 489999.981597066 2014 300000.000745058 2015 449999.999254942 2016 1029999.9788403499 2017 869999.984279275 2018 0.0037252902984619097 2019 800000.000745058 2020 289999.99538064 2021 -199999.993667006 2022 -180000.00715255702