Year Dollars 1992-01-01 855928 1997-01-01 2896240 2002-01-01 4833354 2003-01-01 7894722 2004-01-01 7194204 2005-01-01 8336085 2006-01-01 8096062 2007-01-01 11768106 2008-01-01 14364153 2009-01-01 13366401 2010-01-01 14181545 2011-01-01 19541274 2012-01-01 18924967 2013-01-01 16299626 2014-01-01 14270557 2015-01-01 13767485 2016-01-01 10152269