Year Millions of 2000 Dollars 1993-01-01 1030.41 1994-01-01 1594.83 1995-01-01 2005.59 1996-01-01 1873.94 1997-01-01 2470.31 1998-01-01 2783.97 1999-01-01 2921.08 2000-01-01 3292.57 2001-01-01 3935.42 2002-01-01 5427.84 2003-01-01 7550.61 2004-01-01 10136.50 2005-01-01 11359.50 2006-01-01 15018.40 2007-01-01 19595.60 2008-01-01 18696.40 2009-01-01 18751.30 2010-01-01 18375.40 2011-01-01 18107.40 2012-01-01 19397.70 2013-01-01 21033.80 2014-01-01 18594.70 2015-01-01 22158.60 2016-01-01 22573.30