Year Dollars 1992-01-01 152286 1997-01-01 664420 2002-01-01 98284 2003-01-01 755714 2004-01-01 1438013 2005-01-01 4989653 2006-01-01 4674884 2007-01-01 4385041 2008-01-01 8027228 2009-01-01 6834384 2010-01-01 13794307 2011-01-01 18908056 2012-01-01 9368125 2013-01-01 9074580 2014-01-01 11032584 2015-01-01 4086613 2016-01-01 2195799