Year Dollars 1997-01-01 83195 2002-01-01 220631 2003-01-01 1100778 2004-01-01 730839 2005-01-01 898655 2006-01-01 1221090 2007-01-01 948589 2008-01-01 2348184 2009-01-01 1795337 2010-01-01 2899318 2011-01-01 4186048 2012-01-01 5823852 2013-01-01 7114044 2014-01-01 4830352 2015-01-01 3482280 2016-01-01 2980124