Year Dollars 1992-01-01 29237041 1997-01-01 30694173 2002-01-01 40866622 2003-01-01 71201475 2004-01-01 53947708 2005-01-01 44706366 2006-01-01 53189307 2007-01-01 92181229 2008-01-01 195467507 2009-01-01 142960664 2010-01-01 134729335 2011-01-01 115236407 2012-01-01 113318381 2013-01-01 160147757 2014-01-01 190589683 2015-01-01 215749613 2016-01-01 112761111