Year Dollars 1997-01-01 1221649 2002-01-01 506078 2003-01-01 525066 2004-01-01 679830 2005-01-01 645188 2006-01-01 829815 2007-01-01 1254436 2008-01-01 3291924 2009-01-01 930500 2010-01-01 1192565 2011-01-01 950892 2012-01-01 1433595 2013-01-01 2610275 2014-01-01 1728604 2015-01-01 2470919 2016-01-01 1205828