Year Dollars 1992-01-01 2292435 1997-01-01 27633101 2002-01-01 5854655 2003-01-01 1968241 2004-01-01 4488515 2005-01-01 5738418 2006-01-01 7057062 2007-01-01 17376621 2008-01-01 7076774 2009-01-01 4499299 2010-01-01 4419636 2011-01-01 5564399 2012-01-01 13433636 2013-01-01 6618600 2014-01-01 4103367 2015-01-01 8418189 2016-01-01 4460621