Year Dollars 1992-01-01 143693 1997-01-01 53200 2004-01-01 130671 2005-01-01 76770 2007-01-01 51585 2010-01-01 892884 2011-01-01 1001694 2012-01-01 1827290 2013-01-01 551297 2014-01-01 422649 2015-01-01 416264 2016-01-01 422801