Year Dollars 1992-01-01 316796 1997-01-01 871724 2002-01-01 1451211 2003-01-01 5073070 2004-01-01 4487245 2005-01-01 11501260 2006-01-01 13255421 2007-01-01 35215297 2008-01-01 31677285 2009-01-01 10640598 2010-01-01 14612144 2011-01-01 27551342 2012-01-01 28007519 2013-01-01 25534126 2014-01-01 20716856 2015-01-01 13295380 2016-01-01 14442699