Year Dollars 1992-01-01 796842 2002-01-01 174714 2003-01-01 772486 2004-01-01 500825 2005-01-01 1441112 2006-01-01 406748 2007-01-01 440306 2008-01-01 1575750 2009-01-01 1779947 2010-01-01 2420802 2011-01-01 3960430 2013-01-01 4258470 2014-01-01 3318632 2015-01-01 6313803