Year constant 2015 US$ 1960 4827329401.914662 1961 4884469573.729466 1962 5033033600.132466 1963 5221397415.277213 1964 5406608719.90266 1965 5516149516.7298765 1966 5770717368.807324 1967 5141012904.580107 1968 5467278232.868714 1969 5735255755.988228 1970 5912593777.350291 1971 6118334765.187821 1972 6281929448.961275 1973 6618369537.016068 1974 7328802680.325048 1975 8152930849.293459 1976 7704916015.677051 1977 8763561577.190376 1978 10691808462.446768 1979 11337071802.187138 1980 11114265274.658419 1981 13012879895.813164 1982 13990954313.545856 1983 14951689440.750196 1984 16069264314.496294 1985 17364955075.556046 1986 18540851327.9566 1987 18142844102.99543 1988 16723414750.595366 1989 16419195682.582483 1990 15416689238.297834 1991 14829529308.66255 1992 14369813423.944647 1993 13229990256.52946 1994 13478291934.236982 1995 13868353888.463385 1996 14452915010.814346 1997 15107243821.723412 1998 15821141893.09515 1999 16534881735.193192 2000 17168567485.080212 2001 17910981186.096863 2002 18712860619.975864 2003 19733301669.1566 2004 21124275033.392746 2005 21594980960.880005 2006 22417659743.947945 2007 23387803923.265415 2008 24053813244.36015 2009 24674221649.994785 2010 25389533435.396786 2011 26247499414.46991 2012 27461703152.465485 2013 28833560541.63869 2014 30482787769.37542 2015 32210233021.404896 2016 33671222914.445766 2017 34863580364.141205 2018 36242614249.642296 2019 37502066833.844055 2020 37599547049.6907 2021 38854942335.72039 2022 40247035779.57538 2023 41854256684.235855