Year Dollars 1992-01-01 16754126 1997-01-01 43121343 2002-01-01 25761079 2003-01-01 35526084 2004-01-01 27600448 2005-01-01 37282222 2006-01-01 50157671 2007-01-01 59019158 2008-01-01 62839662 2009-01-01 46751135 2010-01-01 48465731 2011-01-01 52060095 2012-01-01 50860822 2013-01-01 55683128 2014-01-01 65443724 2015-01-01 60184850 2016-01-01 77340728