Year constant 2015 US$ 1997 217398664596.19028 1998 229014545448.69086 1999 240368983676.1771 2000 246155342689.71625 2001 256892427507.72318 2002 264032204618.58377 2003 278306318484.4527 2004 293664739939.7277 2005 308998082036.3366 2006 325791264272.19037 2007 340423612023.24835 2008 353920962893.81525 2009 368825793437.8606 2010 389498237425.1762 2011 391258958820.1645 2012 408463970864.3521 2013 436805453320.3247 2014 455898430426.448 2015 483909952328.9284 2016 500567962337.6699 2017 519895918093.4102 2018 539038966938.5357 2019 568271299146.873 2020 571096614599.9371 2021 602971470387.3971 2022 628190304858.2703 2023 648048283121.0059