Year Dollars 1992-01-01 377277 1997-01-01 151668 2002-01-01 406267 2003-01-01 831628 2004-01-01 131733 2005-01-01 415400 2006-01-01 79801 2007-01-01 195931 2008-01-01 1533009 2010-01-01 229029 2011-01-01 17387 2015-01-01 44605