Year current US$ 1960 373855500 1961 397476900 1962 417620200 1963 471310600 1964 518805700 1965 561354600 1966 570180700 1967 619994500 1968 637895700 1969 710975300 1970 756198400 1971 813507100 1972 855359700 1973 940287800 1974 1168198200 1975 1291604200 1976 1334901200 1977 1522415000 1978 1754394900 1979 2075419500 1980 2432609600 1981 2933781100 1982 2848602500 1983 3380924500 1984 4062304900 1985 4290901799.9999995 1986 4202102100 1987 4100262899.9999995 1988 3807763100 1989 4519368200 1990 4266764000 1991 4846240100 1992 5250353300 1993 5687328800 1994 5813926000 1995 5741613400 1996 5879336800 1997 6242212600 1998 7313611100 1999 7705968400 2000 7504876900 2001 7841737300 2002 8496709400 2003 8638885800 2004 9787705300 2005 10353312100 2006 11147071000 2007 12382100000 2008 14117300000 2009 15177800000 2010 16888200000 2011 19259700000 2012 21480900000 2013 23981100000 2014 26970300000 2015 27871100000 2016 30107200000 2017 31518046200 2018 33108282501.831303 2019 35300529596.713196 2020 31728501420.9026 2021 34049753121.676098 2022 35260814198.556