Year current US$ 1960 230000.004172325 1961 189999.99761581398 1962 39999.9991059303 1963 -170000.00178813902 1964 439999.997615814 1965 579999.983310699 1966 730000.019073486 1967 740000.009536743 1968 649999.976158142 1969 1309999.9427795399 1970 1820000.05245209 1971 2480000.01907349 1972 3569999.9332428 1973 5190000.05722046 1974 15229999.5422363 1975 19629999.1607666 1976 45659999.8474121 1977 44930000.3051758 1978 47990001.6784668 1979 47900001.5258789 1980 45279998.779296905 1981 27370000.8392334 1982 35099998.4741211 1983 36840000.1525879 1984 35770000.4577637 1985 41990001.6784668 1986 41779998.779296905 1987 48880001.0681152 1988 61259998.3215332 1989 56840000.1525879 1990 51810001.373291 1991 36930000.3051758 1992 24799999.237060502 1993 43900001.5258789 1994 47119998.9318848 1995 63630001.0681152 1996 57220001.220703095 1997 65400001.525878906 1998 80150001.5258789 1999 59389999.3896484 2000 45069999.6948242 2001 54650001.5258789 2002 62110000.6103516 2003 76540000.9155273 2004 99470001.2207031 2005 90139999.3896484 2006 82209999.0844727 2007 96550003.0517578 2008 125510002.13623 2009 112550003.05175799 2010 132449996.948242 2011 87279998.7792969 2012 85760002.1362305 2013 99449996.9482422 2014 261540008.544922 2015 557960021.972656 2016 2698110107.42188 2017 734719970.703125 2018 749780029.296875 2019 497140014.64843804 2020 529109985.351563 2021 152399993.89648402 2022 137490005.493164