Year Dollars 1992-01-01 2437292 1997-01-01 2284237 2002-01-01 2114766 2003-01-01 2399402 2004-01-01 643337 2005-01-01 3785851 2007-01-01 1953460 2009-01-01 2767079 2010-01-01 2925764 2011-01-01 2625991 2012-01-01 7443104 2013-01-01 5543637 2014-01-01 5947829 2015-01-01 4254461 2016-01-01 4672637