Year constant 2010 US$ 1991 4366.02207897783 1992 4200.93040596355 1993 4113.66040644418 1994 3995.30577604645 1995 3905.22601502128 1996 3979.62045263349 1997 3799.54884584582 1998 3496.66653429265 1999 3067.25898064854 2000 2996.09283795166 2001 2827.18652760752 2002 2715.95456223045 2003 2547.16260418659 2004 2473.41535101851 2005 2421.8615835719 2006 2406.09610623152 2007 2259.10693521594 2008 2142.4255966751 2009 2057.19777658784 2010 1987.97130779444 2011 1947.73808232645 2012 1987.65589713672 2013 2009.78357407758 2014 1972.73725386938 2015 2244.60750996424 2016 2343.69896137663 2017 2451.99660394897 2018 2235.17970195433