Year Dollars 1997-01-01 18095 2003-01-01 184017 2005-01-01 130164 2006-01-01 266746 2008-01-01 896469 2009-01-01 607490 2010-01-01 947718 2011-01-01 2608730 2012-01-01 1520442 2013-01-01 741939 2014-01-01 494528 2015-01-01 238574 2016-01-01 755504