Year current US$ 1960 556461972.2969098 1961 610784457.3105495 1962 628637732.8112769 1963 731665892.3714035 1964 896802317.2481956 1965 893071280.7941881 1966 990002896.3469838 1967 1046698105.6795808 1968 1243690120.4498894 1969 1319400808.447207 1970 1419613979.2726014 1971 1517255629.4911945 1972 1789499913.0392954 1973 2405121063.2325754 1974 2973454142.152324 1975 3752941296.1142325 1976 4503853895.778094 1977 6070868192.696777 1978 7591720786.245037 1979 8682637701.408514 1980 9680517025.41687 1981 7910293027.800503 1982 7026605096.586522 1983 6150114795.064024 1984 6349600155.544944 1985 6295644866.233943 1986 8468160551.487451 1987 9196581454.538633 1988 9302464075.502832 1989 8372493903.363936 1990 9209160119.155767 1991 9121517086.27597 1992 9807255406.8269 1993 9679055051.974222 1994 7539428556.814656 1995 10012664587.066133 1996 11223282690.495674 1997 11002799372.518728 1998 12020813057.135052 1999 11742586597.901474 2000 9739259799.95012 2001 9920429937.78245 2002 10857690467.245481 2003 13047012644.784529 2004 14789614207.457731 2005 16439390778.520472 2006 17106470545.544163 2007 19561214782.61588 2008 23421489631.656784 2009 23436744023.953743 2010 23995591357.524677 2011 24425274888.75904 2012 25926659727.412884 2013 29861782820.47042 2014 47933652024.97348 2015 44807751702.50437 2016 47331529982.55003 2017 50973205770.879265 2018 56893409586.38357 2019 58700458323.69428 2020 61181445318.32389 2021 70557249154.88219 2022 67874161725.943245 2023 75606107317.34799