Year Dollars 1997-01-01 136738 2002-01-01 485316 2004-01-01 283930 2005-01-01 578267 2006-01-01 415098 2007-01-01 508832 2008-01-01 839919 2009-01-01 536231 2010-01-01 697972 2011-01-01 320087 2012-01-01 273855 2013-01-01 260772 2014-01-01 514454 2015-01-01 480942 2016-01-01 2393695