Year Dollars 1992-01-01 30691046 1997-01-01 32503558 2002-01-01 76147561 2003-01-01 66983990 2004-01-01 85052268 2005-01-01 133447549 2006-01-01 158895698 2007-01-01 123974749 2008-01-01 180656962 2009-01-01 128965624 2010-01-01 171230968 2011-01-01 242774055 2012-01-01 206750838 2013-01-01 230473391 2014-01-01 214487660 2015-01-01 178869380 2016-01-01 224586243