Year US Dollars 1960 90330001.83105 1961 117489997.86377 1962 63080001.83105 1963 61080001.83105 1964 119919998.16894 1965 135350006.10352 1966 89050003.05176 1967 78959999.08447 1968 70739997.86377 1969 82919998.16895 1970 42700000.76294 1971 10380000.11444 1972 49209999.08447 1973 55560001.37329 1974 68089996.33789 1975 53759998.32153 1976 49450000.76294 1977 105760002.13623 1978 132639999.38965 1979 128229995.72754 1980 114639999.38965 1981 83639999.38965 1982 65010002.13623 1983 81000000 1984 75699996.94824 1985 58299999.23706 1986 70519996.64307 1987 83389999.38965 1988 69050003.05176 1989 55520000.45776 1990 85419998.16895 1991 80550003.05176 1992 80589996.33789 1993 80559997.55859 1994 78410003.66211 1995 73720001.2207 1996 40959999.08447 1997 36470001.2207 1998 48000000 1999 39189998.62671 2000 17780000.68665 2001 45330001.83105 2002 31879999.16077 2003 42610000.61035 2004 24500000 2005 51689998.62671 2006 38099998.47412 2007 51849998.47412 2008 68720001.2207 2009 57310001.37329 2010 93900001.52588 2011 123150001.52588 2012 93629997.25342 2013 117319999.69482 2014 87199996.94824 2015 100150001.52588 2016 158759994.50684 2017 155070007.32422 2018 123620002.74658 2019 71760002.13623 2020 104989997.86377 2021 119410003.66211