Year constant 2015 US$ 1960 5232423634.429145 1961 4675767446.086362 1962 6791012783.093193 1963 6791012783.093193 1964 6234376464.138201 1965 6791012783.093193 1966 7904292800.746538 1967 7904292800.746538 1968 7347660171.898774 1969 8906251165.380888 1970 9013135452.44428 1971 8118045999.6620865 1972 8282808731.53228 1973 9440628603.954033 1974 9462883794.699749 1975 8583388373.734573 1976 11288671241.948261 1977 14372484706.685995 1978 15652680713.15747 1979 15151716645.77013 1980 14372484706.685995 1981 15120415374.093472 1982 15717150490.811844 1983 16123062538.486668 1984 15705233732.11264 1985 18148029532.25838 1986 16284164980.306273 1987 15717150490.811844 1988 18659332788.74602 1989 20045781619.335617 1990 23656348273.52584 1991 22799008061.799007 1992 22564247943.59633 1993 23463026769.637302 1994 27051830214.402157 1995 33146105665.36576 1996 35680720379.37916 1997 40025718989.115906 1998 44277808443.67578 1999 43719784992.07277 2000 44901264661.83915 2001 46132004177.42078 2002 47558846392.974365 2003 50410174346.950294 2004 54500535536.25424 2005 61523927130.27948 2006 64945397756.27386 2007 70247833528.51355 2008 70767579313.63322 2009 64152858356.33626 2010 73068125669.10878 2011 76099586869.35 2012 72973178922.74258 2013 70404347638.80727 2014 65490710336.029205 2015 63671789068.898705 2016 67057443560.298035 2017 68811257871.94434 2018 69255776018.3655 2019 76008924331.35214 2020 62754707866.89806 2021 68087046886.86177 2022 72016011275.15672 2023 67200656325.05576