Year Dollars 1992-01-01 429158 1997-01-01 397240 2002-01-01 859747 2003-01-01 534380 2004-01-01 2409346 2005-01-01 2119159 2006-01-01 4850178 2007-01-01 4044976 2008-01-01 7104671 2009-01-01 3448217 2010-01-01 6018139 2011-01-01 5443735 2012-01-01 6751599 2013-01-01 10353742 2014-01-01 8616041 2015-01-01 7990651 2016-01-01 6754606