Year current US$ 1965 91428571.42857143 1966 107142857.14285715 1967 115142857.14285715 1968 135857142.85714287 1969 165714285.7142857 1970 153857142.85714287 1971 142714285.7142857 1972 157563025.21008402 1973 205674846.62576687 1974 245878693.6236392 1975 205598755.83203733 1976 232097004.27960056 1977 240253164.556962 1978 307615480.6491885 1979 298865069.3568726 1980 280101394.1698352 1981 410689655.17241377 1982 371582346.6092573 1983 502065131.056394 1984 301985659.12851626 1985 230000000 1986 170698510.529019 1987 219077634.20527366 1988 218364384.2245342 1989 395642102.21514404 1990 383008695.6521739 1991 312662438.11881185 1992 340039106.1452514 1993 347762515.92996776 1994 468095271.53103435 1995 454729151.8876451 1996 430091977.8127329 1997 523493531.3709112 1998 424825019.9106478 1999 391073060.97648305 2000 419358379.9123325 2001 491846986.9992121 2002 462945486.0017801 2003 516036521.0443264 2004 616698888.3366901 2005 800210283.4098802 2006 1133081540.8953402 2007 1199064584.6346033 2008 1526999199.0816138 2009 1022115950.9324032 2010 1121431906.777011 2011 1295444462.7317054 2012 1396057350.4555786 2013 1704661472.9041224 2014 1835693241.2672622 2015 1092537674.4078245 2016 987537387.9815339 2017 1701890181.2450747 2018 2086242463.3065329 2019 1769940131.8851821 2020 570238375.9175229 2021 934738984.020121 2022 1775373048.8521569 2023 1746851810.330308