Year constant 2015 US$ 1970 1221815221.8282883 1971 1299558341.0783696 1972 1359065468.9989972 1973 1444486970.019761 1974 1463682759.043283 1975 1410894215.1657178 1976 1446406565.4582353 1977 1463682759.043283 1978 1486717738.9773152 1979 1650842156.9422379 1980 1718027666.5664525 1981 1674365965.6163342 1982 1734450890.4679701 1983 1697198203.9249706 1984 1813362336.8991508 1985 1915106186.9834404 1986 1928324903.5388231 1987 2060912260.2467759 1988 1597857816.9805875 1989 1618687279.6220696 1990 1841802545.6267414 1991 2034474904.5039258 1992 2220738113.3385315 1993 2361336729.637613 1994 2461878846.3871117 1995 2466685581.0425873 1996 2508965748.527423 1997 2590654006.937448 1998 2648516456.4763145 1999 2676653541.0846305 2000 2485139845.3011093 2001 2328797599.6331377 2002 2267599317.94835 2003 2190608059.1486654 2004 2236217453.91858 2005 2330159050.1630216 2006 2420469954.4025154 2007 2556616988.8491206 2008 2649948295.9517446 2009 2610096075.312495 2010 2719954442.635047 2011 2872936606.8822904 2012 3107110815.780001 2013 3227476573.150916 2014 3341881632.322071 2015 3456900000 2016 3496602573.363596 2017 3588119053.4170976 2018 3634174653.714479 2019 3583351664.8612103 2020 2841790668.641338 2021 3164412703.740636 2022 3326667913.8129272 2023 3393997613.504335