Year Dollars 1992-01-01 629590 1997-01-01 750477 2002-01-01 883475 2004-01-01 2335519 2005-01-01 4251931 2006-01-01 5052182 2007-01-01 4829340 2008-01-01 5415629 2009-01-01 5240558 2010-01-01 6151664 2011-01-01 7610207 2012-01-01 5843188 2013-01-01 4300636 2014-01-01 8707860 2015-01-01 3733807 2016-01-01 5368570