Year current US$ 1960 0 1961 0 1962 0 1963 0 1964 19999.9995529652 1965 9999.99977648258 1966 29999.999329447703 1967 39999.9991059303 1968 9999.99977648258 1969 220000.000670552 1970 109999.999403954 1971 39999.9991059303 1972 349999.99403953605 1973 459999.993443489 1974 769999.992102385 1975 2560000.03963709 1976 4100000.02756715 1977 5179999.966174359 1978 3739999.97228384 1979 6729999.8998642005 1980 8949999.82789159 1981 5339999.97377396 1982 11250000.134110501 1983 9190000.00506639 1984 13199999.9992549 1985 13509999.765083201 1986 22509999.986738 1987 29270000.185817502 1988 38810000.7213652 1989 40020000.0125915 1990 63079998.9327788 1991 50989998.9534169 1992 56509999.029338405 1993 43880000.5167723 1994 52069999.9909848 1995 63549999.753013305 1996 67150000.0152737 1997 67850001.597777 1998 89369999.229908 1999 69450000.5785376 2000 56050000.1106411 2001 86229999.6372312 2002 59489999.0409613 2003 73899999.6539205 2004 86340000.3947318 2005 89660000.4732609 2006 94249999.511987 2007 251759998.373687 2008 113080001.376569 2009 124409998.685122 2010 181389996.487647 2011 218370003.659278 2012 331639998.45460105 2013 798659974.768758 2014 249400002.85208198 2015 232599997.38633603 2016 204639998.88673398 2017 165789996.860549 2018 183880000.144243 2019 143130001.801997 2020 111760000.288486 2021 140580003.902316 2022 131299998.62611288