Year Dollars 1992-01-01 25272670 1997-01-01 21449554 2002-01-01 21691634 2003-01-01 28102521 2004-01-01 25326580 2005-01-01 31570130 2006-01-01 37653052 2007-01-01 30048817 2008-01-01 26144641 2009-01-01 24784871 2010-01-01 41305343 2011-01-01 34426777 2012-01-01 33910089 2013-01-01 42789206 2014-01-01 94874893 2015-01-01 50451975 2016-01-01 54089174