Year Dollars 1997-01-01 215347 2002-01-01 835902 2003-01-01 2234964 2004-01-01 2537433 2005-01-01 1389005 2006-01-01 1003785 2007-01-01 1514595 2008-01-01 4197148 2009-01-01 1925258 2010-01-01 3875132 2011-01-01 4737678 2012-01-01 3750176 2013-01-01 5384739 2014-01-01 4141424 2015-01-01 5002725 2016-01-01 4977464