Year US Dollars 1961 100000.00149 1963 105949996.94824 1964 42430000.30518 1965 32189998.62671 1966 2910000.08583 1967 2900000.09537 1968 13300000.19073 1969 4960000.03815 1970 4309999.94278 1971 4309999.94278 1972 4909999.84741 1973 4710000.03815 1974 7550000.19073 1975 17040000.91553 1976 28200000.76294 1977 26950000.76294 1978 31770000.45776 1979 34909999.84741 1980 371029998.7793 1981 423170013.42773 1982 534609985.35156 1983 525020019.53125 1984 786020019.53125 1985 605380004.88281 1986 480089996.33789 1987 532830017.08984 1988 451570007.32422 1989 443700012.20703 1990 494089996.33789 1991 551229980.46875 1992 1096510009.76563 1993 726200012.20703 1994 790979980.46875 1995 608570007.32422 1996 469089996.33789 1997 457589996.33789 1998 366859985.35156 1999 317540008.54492 2000 239809997.55859 2001 242309997.55859 2002 284679992.67578 2003 234839996.33789 2004 213839996.33789 2005 421500000 2006 297429992.67578 2007 490369995.11719 2008 625409973.14453 2009 775099975.58594 2010 723619995.11719 2011 695619995.11719 2012 971320007.32422 2013 794390014.64844 2014 726929992.67578 2015 827200012.20703 2016 699359985.35156 2017 766450012.20703 2018 805700012.20703 2019 868059997.55859 2020 984599975.58594 2021 922640014.64844