Year Dollars 1997-01-01 762461 2002-01-01 285954 2003-01-01 198469 2005-01-01 298511 2006-01-01 304574 2007-01-01 298386 2009-01-01 341188 2010-01-01 488453 2011-01-01 1112034 2012-01-01 669320 2013-01-01 801997 2014-01-01 1330534 2015-01-01 846998 2016-01-01 779660