Year current US$ 1960 7470000.037923452 1961 9070000.190287825 1962 7840000.208467245 1963 5590000.171214345 1964 4340000.011026856 1965 6440000.012516979 1966 9459999.965503821 1967 11340000.10788441 1968 15159999.9871105 1969 17179999.884217978 1970 15790000.149980187 1971 15589999.834075574 1972 11560000.220313666 1973 5509999.891743069 1974 8579999.81194734 1975 7430000.023916359 1976 9610000.079497688 1977 7069999.974220995 1978 18720000.36202372 1979 20839999.932795767 1980 15349999.910220504 1981 23580000.083893538 1982 21110000.02734362 1983 13940000.116825117 1984 8180000.171065341 1985 8309999.840334063 1986 17410000.30376017 1987 21749999.836087227 1988 20730000.17739833 1989 34350000.450387575 1990 65030001.487582915 1991 54370000.20593408 1992 31099999.69601636 1993 41279999.85963108 1994 36550000.05289915 1995 32360000.291839235 1996 52939999.89889562 1997 212619999.4664641 1998 60839998.38307497 1999 44590000.1432746 2000 59170000.78596178 2001 54749999.15808439 2002 36100000.16354024 2003 30190000.532194976 2004 79730000.04887581 2005 61990000.52735211 2006 64379999.56496052 2007 57220000.05096192 2008 96009998.96973366 2009 92799998.87943277 2010 93269998.93411988 2011 97449999.5224177 2012 61570000.601932324 2013 45339999.9886751 2014 130849998.50764874 2015 18249999.80442226 2016 56389998.3409792 2017 25180000.2679229 2018 42030001.05172391 2019 62880000.50745908 2020 31659999.58850447 2021 30339999.68878925 2022 17840000.180527568