Year Dollars 1992-01-01 36463 1997-01-01 24568 2002-01-01 33937 2003-01-01 71151 2004-01-01 154148 2005-01-01 153337 2006-01-01 174248 2007-01-01 156954 2008-01-01 656392 2010-01-01 232588 2011-01-01 195395 2012-01-01 162864 2013-01-01 39971 2014-01-01 25647 2015-01-01 68988 2016-01-01 23587