Year constant 2015 US$ 1960 2618701702.1365867 1961 2780566579.9730525 1962 2957802655.3346076 1963 3078259812.4040895 1964 3342075344.516943 1965 3685257013.2888246 1966 3899508937.0279264 1967 4058236946.008477 1968 4235159448.2645583 1969 4585553584.238638 1970 5082756253.209184 1971 5402725547.078749 1972 5707631246.824835 1973 6080297606.58948 1974 6239025757.386093 1975 6184129557.720268 1976 5974583505.413285 1977 6024460260.616751 1978 6539543138.532875 1979 6659373433.700639 1980 6505978016.350714 1981 6488097664.836733 1982 6510997034.988716 1983 6720857086.488848 1984 6697016428.590068 1985 6964909833.109253 1986 7291777026.369409 1987 7493795332.024323 1988 7711807859.646172 1989 7602332586.608258 1990 7373337464.294618 1991 8077262449.853362 1992 9195889413.93028 1993 10869751500.950676 1994 11515643989.653118 1995 11134194181.00486 1996 11995278888.518385 1997 11526936460.339508 1998 11092473174.60146 1999 11298300003.635935 2000 11016425270.695272 2001 11003063602.10136 2002 10985579675.382196 2003 11223318880.020605 2004 11528725110.716816 2005 12260199191.526583 2006 12923469113.242363 2007 13933462679.345013 2008 13892155836.029251 2009 14836880985.985117 2010 16339627662.371357 2011 16520596167.090136 2012 17289980088.70619 2013 17951312547.22225 2014 20382597142.194332 2015 21723437010.098206 2016 22915960976.066036 2017 23725951011.661198 2018 23659695751.332653 2019 24719752004.78088 2020 23936783232.9543 2021 23749997636.512306 2022 24976697204.43901 2023 25646325074.996456