Year constant 2015 US$ 1985 370623080.55482906 1986 391141588.57376826 1987 391878765.420059 1988 377503536.50769186 1989 366568533.3556 1990 335790772.6463318 1991 362575416.63023436 1992 391496567.0681318 1993 412233192.01508147 1994 376956905.41834784 1995 391544942.58881617 1996 421596145.2954323 1997 460383358.6500481 1998 410610395.91610193 1999 405778830.1072848 2000 320696739.4545348 2001 302205618.7978876 2002 345710002.0965258 2003 331495139.2224538 2004 344367283.2717792 2005 359430493.32095087 2006 355025302.7451903 2007 320052444.84795016 2008 317303350.7541358 2009 369447793.0585522 2010 327205091.145015 2011 362247069.36655766 2012 419134602.7259654 2013 448229251.45094764 2014 390373250.3308435 2015 458712643.4529997 2016 420129049.1406291 2017 432996053.9114635 2018 438720778.02331537 2019 446016261.4845448 2020 463717007.0561525 2021 503873738.92087966 2022 533177305.25026315 2023 458811991.4144185