Year Dollars 1992-01-01 23464 1997-01-01 427212 2002-01-01 309288 2003-01-01 432575 2004-01-01 1144171 2005-01-01 340536 2006-01-01 423463 2007-01-01 2505350 2008-01-01 507075 2009-01-01 265010 2010-01-01 576188 2011-01-01 390106 2012-01-01 165448 2013-01-01 507274 2014-01-01 357733 2015-01-01 215868 2016-01-01 142785