Year Dollars 1992-01-01 2485799 1997-01-01 4713875 2002-01-01 4237631 2003-01-01 5002005 2004-01-01 4109754 2005-01-01 4988243 2006-01-01 8559248 2007-01-01 3422967 2008-01-01 4031913 2009-01-01 3977413 2010-01-01 5160710 2011-01-01 7367269 2012-01-01 6854993 2013-01-01 6863269 2014-01-01 6434679 2015-01-01 5966611 2016-01-01 8624314