Year current US$ 1962 867189979.3187441 1963 872722843.2623723 1964 757900727.8084842 1965 1043248493.9574087 1966 1147734952.71378 1967 1321423130.446941 1968 1371759262.5570297 1969 1599464179.924143 1970 1964332749.5396612 1971 2094006535.603806 1972 2377053999.3475075 1973 2942784211.859426 1974 3753890143.8142643 1975 4214064565.2615623 1976 4177240146.306294 1977 3970940878.118545 1978 4134547993.6566896 1979 4778408145.030422 1980 5860984958.603294 1981 7434138259.463086 1982 7084794969.72952 1983 6805655209.102488 1984 6373887199.494887 1985 5722895132.452268 1986 5273532618.54104 1987 5487793122.903643 1988 6583000571.050378 1989 7297839659.332427 1990 7446655526.918293 1991 7306096035.328245 1992 5837279701.383713 1993 5550815111.278994 1994 5367847985.442478 1995 5185030893.90944 1996 6273858221.53847 1997 5925010639.173333 1998 4741379195.568591 1999 4706812681.535117 2000 4218115721.013402 2001 4624842970.012127 2002 4471990569.449139 2003 4110330392.527822 2004 3903881920.472665 2005 4017897056.71577 2006 3574738552.196914 2007 3053921444.6278043 2008 1597523065.6351595 2009 5541158969.963909 2010 8379786769.1064 2011 12391182087.709295 2012 14854556176.28281 2013 16249407147.657871 2014 16822943941.213848 2015 17275984065.419273 2016 17391112112.262886 2017 17315251805.702137 2018 23308068883.078857 2019 22283187924.683994 2020 22859178984.582935 2021 24553581681.825714 2022 28003360601.3528 2023 29075307302.848103