Year Dollars 1992-01-01 1027052 1997-01-01 2278553 2002-01-01 4321522 2004-01-01 9855857 2006-01-01 10575843 2007-01-01 8430120 2008-01-01 8642366 2009-01-01 6015047 2010-01-01 8712713 2011-01-01 7677744 2012-01-01 8494581 2013-01-01 7922085 2014-01-01 7328365 2015-01-01 6682738 2016-01-01 4704812