Year current US$ 1960 356674563.70745903 1961 394853559.9028228 1962 483381226.0536399 1963 580172827.6524245 1964 698028846.1538461 1965 768557692.3076923 1966 979038461.5384614 1967 1198413461.5384614 1968 1321009615.3846154 1969 1479519230.7692306 1970 1682451923.0769231 1971 1720528846.153846 1972 1857257025.9397235 1973 2436949774.541764 1974 3191689386.79721 1975 3404440070.9367933 1976 3890519572.3766685 1977 5128503517.849885 1978 6060600696.210085 1979 6996397853.44349 1980 8985340309.38029 1981 9753285027.25632 1982 9857689413.392525 1983 11397246866.059284 1984 11954591512.15077 1985 10567406536.210413 1986 11110471878.216272 1987 13966949782.597507 1988 18918965292.708378 1989 25012639071.61321 1990 34463477735.91112 1991 40896672172.19091 1992 43751078734.72134 1993 50350102140.19481 1994 58673113968.56742 1995 69948211483.63551 1996 76243229653.30861 1997 51979614807.06078 1998 25181175920.233055 1999 25853199701.187317 2000 27269031013.140945 2001 27043092912.97469 2002 29427457111.75651 2003 35073121200.56454 2004 42989114403.00141 2005 52465096457.91797 2006 59534634182.16518 2007 66935334744.31924 2008 77064143238.16183 2009 65100382450.16723 2010 81840249412.15605 2011 95806099312.22998 2012 107315514170.85533 2013 106695551681.09111 2014 100455473400.98701 2015 98431904234.66766 2016 98024151653.15948 2017 105456597857.89615 2018 115470161056.75027 2019 122791593013.64493 2020 116169361135.71584 2021 118935920785.54483 2022 115788445412.90422 2023 118265807935.24223