Year Dollars 1997-01-01 606921 2002-01-01 1081037 2003-01-01 3735870 2004-01-01 815879 2005-01-01 2175743 2006-01-01 1060381 2007-01-01 884727 2008-01-01 1188788 2009-01-01 2002904 2010-01-01 2947770 2011-01-01 3807698 2014-01-01 4932712 2015-01-01 1798473 2016-01-01 2314293