Year Dollars 1997-01-01 2185776 2002-01-01 1688730 2003-01-01 1396861 2004-01-01 1821271 2005-01-01 2199008 2006-01-01 2185567 2007-01-01 4024775 2008-01-01 21148186 2009-01-01 9403635 2010-01-01 7478842 2011-01-01 10871339 2012-01-01 5529149 2013-01-01 6788292 2014-01-01 7416113 2015-01-01 6563310 2016-01-01 10415071