Year Dollars 1992-01-01 5589805 1997-01-01 10929475 2002-01-01 33874852 2003-01-01 37916709 2004-01-01 42247840 2005-01-01 56001563 2006-01-01 33245878 2007-01-01 38774193 2008-01-01 43685009 2009-01-01 33309734 2010-01-01 40307721 2011-01-01 39015237 2012-01-01 33421860 2013-01-01 41335058 2014-01-01 34232229 2015-01-01 48499915 2016-01-01 34468447