Year Dollars 1992-01-01 642221 1997-01-01 1607877 2002-01-01 3517611 2003-01-01 1503143 2004-01-01 1805395 2005-01-01 5644230 2006-01-01 4561709 2007-01-01 3467720 2008-01-01 2995172 2009-01-01 2583145 2010-01-01 1390296 2011-01-01 1999624 2012-01-01 7162923 2013-01-01 3836607 2014-01-01 9553230 2015-01-01 4632569 2016-01-01 2775268