Year Dollars 1992-01-01 255381 1997-01-01 144332 2002-01-01 200117 2003-01-01 334810 2005-01-01 128724 2006-01-01 259645 2007-01-01 119482 2008-01-01 73748 2009-01-01 254788 2010-01-01 128123 2011-01-01 146490 2012-01-01 46445 2014-01-01 133729 2015-01-01 158368 2016-01-01 81832