Year current US$ 1960 0 1961 0 1962 0 1963 0 1964 0 1965 0 1966 0 1967 0 1968 0 1969 0 1970 0 1971 0 1972 0 1973 0 1974 0 1975 0 1976 0 1977 0 1978 0 1979 0 1980 0 1981 0 1982 0 1983 0 1984 0 1985 0 1986 0 1987 60000.0005215406 1988 59999.9986588955 1989 79999.9982118607 1990 49999.998882412896 1991 539999.99910593 1992 829999.992623925 1993 3039999.90411103 1994 4730000.00976026 1995 4540000.07733703 1996 4260000.04634261 1997 4130000.0846386002 1998 5030000.03471971 1999 9069999.81217086 2000 13260000.480338901 2001 4709999.88727272 2002 10109999.9453872 2003 45879999.667406105 2004 87040001.6009808 2005 183319993.68220598 2006 81210000.3287196 2007 82429998.9044666 2008 46860000.7258356 2009 34950000.444427095 2010 49770000.2491474 2011 61339999.7539818 2012 61309999.6522069 2013 58580000.2887845 2014 90770000.9346008 2015 82449999.3622303 2016 82280000.6642938 2017 88059998.8996983 2018 168620000.183582 2019 161349998.489022 2020 81120000.5412102 2021 154309997.424483 2022 136779999.43494803