Year Dollars 1997-01-01 105585 2002-01-01 451473 2003-01-01 2110154 2005-01-01 3112712 2006-01-01 4571301 2008-01-01 913966 2009-01-01 415179 2010-01-01 716077 2011-01-01 743891 2012-01-01 2155585 2013-01-01 2256166 2014-01-01 1406398 2015-01-01 664940 2016-01-01 1248069