Year constant 2015 US$ 1993 8083037734.448826 1994 8254672721.551169 1995 8867454472.017574 1996 9627237804.388668 1997 10928753010.249214 1998 11622693409.639057 1999 11256345567.30937 2000 12133838231.759762 2001 13078264480.362885 2002 14633918051.872648 2003 16229088034.494915 2004 17341568872.102337 2005 18693968558.152725 2006 21849383276.626163 2007 23835081825.516396 2008 21892380229.67655 2009 17462736555.86171 2010 17571834958.396866 2011 19109943802.567177 2012 20625236623.654675 2013 20925812541.828114 2014 21629240385.94569 2015 21990282537.63241 2016 22950964259.59608 2017 24148870932.704285 2018 25636561292.09882 2019 26405810988.452724 2020 27362251042.63554 2021 30049400283.672256 2022 30322960672.471863 2023 29381826348.61522