Year Dollars 1992-01-01 649987 1997-01-01 845080 2002-01-01 2968699 2003-01-01 4216116 2004-01-01 6396539 2005-01-01 5125312 2006-01-01 9372134 2007-01-01 20580100 2008-01-01 20260549 2009-01-01 15289635 2010-01-01 12158666 2011-01-01 15652070 2012-01-01 23077452 2013-01-01 21262290 2014-01-01 29186061 2015-01-01 40812029 2016-01-01 25894022