Year constant 2015 US$ 1961 6530549444.970003 1962 6779887100.026741 1963 6950519813.309715 1964 7222037271.130003 1965 7405257001.030931 1966 7777281520.133172 1967 8278062576.45535 1968 8758280781.6649 1969 9434141515.06755 1970 9797038019.2991 1971 9925076037.875603 1972 9884335594.578985 1973 10581912589.5361 1974 10988875046.979103 1975 11662079154.09561 1976 12051021936.36411 1977 12665695187.954554 1978 13381792930.78167 1979 14238703658.811169 1980 15071102050.263947 1981 15930083244.220417 1982 16589826957.149916 1983 17388459728.737553 1984 18275122774.46972 1985 19188770426.346592 1986 20024546324.977894 1987 20370092037.56618 1988 20873780255.547253 1989 21353731379.696674 1990 22720369186.692257 1991 23765503271.077576 1992 24811183335.955837 1993 26523170679.581116 1994 28008446680.957653 1995 29548935121.174164 1996 30671784965.40697 1997 32636435386.25085 1998 34169833188.392876 1999 35639320702.80445 2000 37777691762.36179 2001 37193872241.15716 2002 38668488650.26105 2003 40965500924.491066 2004 43196097553.018906 2005 45892289127.01706 2006 49411443817.36395 2007 52769853736.48231 2008 55909706547.65283 2009 57888301891.56441 2010 62528609282.47354 2011 67949516441.61089 2012 73815041947.847 2013 76805840200.41734 2014 81704500476.90985 2015 85140955388.85092 2016 89443659904.15225 2017 95222329687.41165 2018 97422045729.83342 2019 97207245817.51685 2020 92711881360.06004 2021 96612720767.47394 2022 89514811807.92029 2023 87457721050.97073