Year Dollars 1992-01-01 8910350 1997-01-01 7286685 2002-01-01 4626660 2003-01-01 5015386 2004-01-01 8170887 2005-01-01 5925649 2006-01-01 7780816 2007-01-01 19338247 2008-01-01 10138520 2009-01-01 7299383 2010-01-01 3556413 2011-01-01 19257242 2012-01-01 3768902 2013-01-01 2451934 2014-01-01 3772481 2015-01-01 839543 2016-01-01 1162962