Year Dollars 1992-01-01 371002 1997-01-01 457192 2002-01-01 962004 2003-01-01 1400792 2004-01-01 2260430 2005-01-01 2279513 2006-01-01 2883839 2007-01-01 1446467 2008-01-01 2264122 2009-01-01 1546271 2010-01-01 2649031 2011-01-01 3488706 2012-01-01 3544626 2013-01-01 5609968 2014-01-01 5042818 2015-01-01 6219843 2016-01-01 5805559