Year Dollars 1997-01-01 16158 2002-01-01 68983 2003-01-01 87534 2004-01-01 421029 2006-01-01 1754585 2007-01-01 170410 2008-01-01 303002 2009-01-01 5409620 2010-01-01 2502882 2011-01-01 2585171 2012-01-01 1356198 2013-01-01 692984 2014-01-01 1588797 2015-01-01 1633558 2016-01-01 3993887