Year Dollars 1992-01-01 159773 1997-01-01 591901 2002-01-01 464042 2003-01-01 617954 2004-01-01 909112 2005-01-01 3308286 2006-01-01 1050337 2007-01-01 982090 2008-01-01 1448440 2009-01-01 1093379 2010-01-01 3747098 2011-01-01 3770936 2012-01-01 2285272 2013-01-01 3184185 2014-01-01 2578581 2015-01-01 2366547 2016-01-01 3467835