Year Dollars 1992-01-01 53052 1997-01-01 408932 2004-01-01 230258 2005-01-01 140987 2006-01-01 217298 2007-01-01 263778 2009-01-01 40198 2010-01-01 378575 2011-01-01 273407 2012-01-01 176535 2013-01-01 137789 2015-01-01 182085 2016-01-01 427562