Year Dollars 1992-01-01 3571333 1997-01-01 9460674 2002-01-01 12902817 2003-01-01 14686560 2004-01-01 12791166 2005-01-01 16184007 2006-01-01 27254389 2007-01-01 28260732 2008-01-01 34655136 2009-01-01 30347601 2010-01-01 30802211 2011-01-01 31856615 2012-01-01 35065973 2013-01-01 39691791 2014-01-01 37878089 2015-01-01 37442807 2016-01-01 44662406