Year Dollars 1992-01-01 22191045 1997-01-01 21947513 2002-01-01 34446169 2003-01-01 66020901 2004-01-01 30546459 2005-01-01 92817095 2006-01-01 50581596 2007-01-01 75751872 2008-01-01 172354274 2009-01-01 231719331 2010-01-01 118557806 2011-01-01 174422357 2012-01-01 164213564 2013-01-01 179662599 2014-01-01 126473060 2015-01-01 176393500 2016-01-01 124084781