Year Dollars 1997-01-01 944355 2002-01-01 77170 2004-01-01 140783 2005-01-01 118474 2007-01-01 352980 2008-01-01 1344940 2009-01-01 524363 2010-01-01 280484 2011-01-01 848489 2012-01-01 760136 2013-01-01 1644823 2014-01-01 1555767 2016-01-01 342961