Year Dollars 1992-01-01 506084 1997-01-01 1996234 2002-01-01 3866078 2003-01-01 2860394 2004-01-01 4635275 2005-01-01 4851536 2006-01-01 6669764 2007-01-01 5718166 2008-01-01 11310007 2009-01-01 5777480 2010-01-01 5777877 2011-01-01 10608969 2012-01-01 8251428 2013-01-01 6878023 2014-01-01 5729726 2015-01-01 6130796 2016-01-01 11493241