Year Dollars 1992-01-01 4329102 1997-01-01 10274638 2002-01-01 11286315 2003-01-01 22606215 2004-01-01 95187110 2005-01-01 78657186 2006-01-01 112676182 2007-01-01 84028172 2009-01-01 38558019 2010-01-01 22810115 2011-01-01 47967776 2012-01-01 19125603 2013-01-01 19521016 2014-01-01 37385942 2015-01-01 21894889 2016-01-01 19023192