Year current US$ 1960 24540403.847628262 1961 26806827.308585234 1962 28651241.84346623 1963 29105416.315664582 1964 28649682.804174088 1965 21361728.344673656 1966 19946388.70158556 1967 19470613.563270234 1968 27895984.23109557 1969 28277737.223337565 1970 31836161.830536675 1971 34424722.78759746 1972 42038088.54653859 1973 54536462.633092426 1974 62086098.38842012 1975 121185470.40332149 1976 98947361.87488276 1977 113488687.40621604 1978 148267446.721747 1979 188743191.54848203 1980 178005191.27371317 1981 164340279.37133947 1982 241868659.75432307 1983 230073037.52465624 1984 190420158.5060611 1985 268619334.8638 1986 386741511.3431043 1987 472535033.5244735 1988 523729944.478869 1989 526732923.9607023 1990 653040758.2489146 1991 680025861.7558353 1992 729527717.4074614 1993 682787954.8307123 1994 494005941.72928244 1995 599607252.0921863 1996 630849191.1571996 1997 580911742.4444879 1998 625419069.5502187 1999 408726291.5749744 2000 418812931.04653484 2001 466610949.7152662 2002 528495498.61617386 2003 644121569.699811 2004 776104926.3748153 2005 847755891.9250371 2006 988799199.3118638 2007 1272741515.673996 2008 1386534361.551774 2009 1438360587.704838 2010 1461601106.2391827 2011 1725866631.174008 2012 1790520176.2474253 2013 1970341058.4090664 2014 2157650869.912149 2015 1886528977.3072116 2016 2118415634.6544237 2017 2502478443.5899525 2018 2926856363.1744323 2019 3286717534.3570476 2020 3506740925.7110066 2021 3984758191.059494 2022 3739722967.4508905 2023 4059857485.023725