Year Dollars 1997-01-01 28607 2002-01-01 290091 2003-01-01 380033 2004-01-01 3259805 2005-01-01 687004 2006-01-01 1325205 2007-01-01 724564 2008-01-01 441992 2009-01-01 434971 2010-01-01 650606 2011-01-01 647073 2012-01-01 1955834 2013-01-01 4160811 2014-01-01 2515701 2015-01-01 3502560 2016-01-01 2672526