Year Dollars 1997-01-01 193272 2002-01-01 293931 2003-01-01 282156 2004-01-01 337656 2005-01-01 512401 2006-01-01 257587 2007-01-01 1132029 2008-01-01 940609 2009-01-01 1359824 2010-01-01 824857 2011-01-01 576600 2012-01-01 2492641 2013-01-01 999261 2014-01-01 1583303 2015-01-01 2048877 2016-01-01 8614453