Year Dollars 2003-01-01 39734 2004-01-01 20795 2006-01-01 75156 2007-01-01 141944 2009-01-01 22888 2010-01-01 339960 2011-01-01 139254 2012-01-01 426004 2013-01-01 522386 2014-01-01 663978 2015-01-01 522863 2016-01-01 393565