Year Dollars 1992-01-01 23785 1997-01-01 568159 2004-01-01 233412 2005-01-01 859666 2006-01-01 1982553 2011-01-01 765834 2012-01-01 199673 2013-01-01 114584 2014-01-01 154221 2015-01-01 725184 2016-01-01 180030