Year Dollars 1992-01-01 109438 1997-01-01 156636 2005-01-01 163498 2006-01-01 23878 2007-01-01 607521 2009-01-01 221381 2010-01-01 997109 2011-01-01 317821 2012-01-01 1700991 2013-01-01 821981 2014-01-01 956023 2015-01-01 753174 2016-01-01 797288