Year Dollars 1992-01-01 1224928 1997-01-01 6627459 2002-01-01 4508740 2003-01-01 5488432 2004-01-01 8482039 2005-01-01 7709602 2006-01-01 8040881 2007-01-01 10919299 2008-01-01 10422200 2009-01-01 6745526 2010-01-01 6742161 2011-01-01 8585274 2012-01-01 5643363 2013-01-01 5764087 2014-01-01 7352134 2015-01-01 16293969 2016-01-01 6148320