Year Dollars 1992-01-01 1025812 1997-01-01 2387559 2002-01-01 3671100 2003-01-01 1859516 2004-01-01 2302365 2005-01-01 3126418 2006-01-01 3590868 2007-01-01 4678798 2008-01-01 3220218 2009-01-01 2845684 2010-01-01 5361954 2011-01-01 6019103 2012-01-01 9518169 2013-01-01 6453547 2014-01-01 5307187 2015-01-01 5117499 2016-01-01 7628120