Year constant 2015 US$ 1995 607658277.3046169 1996 597345401.2612606 1997 518522909.0029878 1998 433578305.3621508 1999 407231266.0829318 2000 472133177.63527596 2001 556239636.8462375 2002 570863813.3536325 2003 643180502.1395197 2004 688779117.3301767 2005 667968600.0061109 2006 639179981.3746862 2007 631162897.0997915 2008 638451155.0484297 2009 498516670.4528395 2010 552085331.0377169 2011 622428618.6845639 2012 632653272.9139847 2013 690367062.155674 2014 748590664.2275741 2015 781000479.5819002 2016 807864718.0496826 2017 855461720.4635339 2018 920402529.9605839 2019 980428913.6075053 2020 937395617.8702046 2021 947177600.7354474 2022 852953493.8404945 2023 789800709.1435412