Year Dollars 1992-01-01 263740 1997-01-01 1249016 2002-01-01 1031449 2003-01-01 1564726 2004-01-01 2882173 2005-01-01 1025005 2006-01-01 2695955 2007-01-01 3959757 2008-01-01 2606519 2009-01-01 2960828 2010-01-01 4237319 2011-01-01 4246332 2012-01-01 7480614 2013-01-01 3734415 2014-01-01 4067277 2015-01-01 4363120 2016-01-01 2952613