Year US Dollars 1960 89540000.91553 1961 73010002.13623 1962 19579999.92371 1963 56029998.7793 1964 55529998.7793 1965 59680000.30518 1966 58659999.84741 1967 77589996.33789 1968 60900001.52588 1969 79269996.64307 1970 82599998.47412 1971 88449996.94824 1972 80260002.13623 1973 68480003.35693 1974 95419998.16895 1975 62560001.37329 1976 81029998.7793 1977 103180000.30518 1978 79730003.35693 1979 61720001.2207 1980 70720001.2207 1981 103089996.33789 1982 178619995.11719 1983 107569999.69482 1984 102199996.94824 1985 82980003.35693 1986 93980003.35693 1987 88459999.08447 1988 86919998.16895 1989 125790000.91553 1990 81250000 1991 174960006.71387 1992 82300003.05176 1993 112430000.30518 1994 88459999.08447 1995 115930000.30518 1996 77290000.91553 1997 103190002.44141 1998 81449996.94824 1999 93199996.94824 2000 93839996.33789 2001 92430000.30518 2002 88949996.94824 2003 80529998.7793 2004 43509998.32153 2005 69860000.61035 2006 77290000.91553 2007 127199996.94824 2008 137660003.66211 2009 156320007.32422 2010 116319999.69482 2011 83910003.66211 2012 109839996.33789 2013 126489997.86377 2014 60040000.91553 2015 63090000.15259 2016 95370002.74658 2017 149339996.33789 2018 165050003.05176 2019 130619995.11719 2020 304359985.35156 2021 167320007.32422