Year Dollars 1997-01-01 662380 2002-01-01 1777283 2003-01-01 3026797 2004-01-01 3646889 2005-01-01 1053356 2006-01-01 2091628 2007-01-01 3374884 2008-01-01 5538860 2009-01-01 1807279 2010-01-01 3811279 2011-01-01 5302575 2012-01-01 7709469 2013-01-01 8294173 2014-01-01 4627420 2015-01-01 2014976 2016-01-01 2868788