Year Dollars 1992-01-01 257001 1997-01-01 534702 2002-01-01 248746 2003-01-01 259625 2004-01-01 570212 2005-01-01 541615 2006-01-01 1002963 2007-01-01 437846 2008-01-01 533106 2009-01-01 885397 2010-01-01 1608208 2011-01-01 3061542 2012-01-01 2753930 2013-01-01 2023879 2014-01-01 2888933 2015-01-01 2049352 2016-01-01 1942987