Year Dollars 1997-01-01 443316 2002-01-01 3744865 2003-01-01 13809140 2004-01-01 10790758 2005-01-01 1684315 2006-01-01 1547919 2007-01-01 1522568 2008-01-01 15086515 2009-01-01 7837313 2010-01-01 21666293 2011-01-01 14401956 2012-01-01 34363612 2013-01-01 11619774 2014-01-01 71747844 2015-01-01 12576000 2016-01-01 44698446