Year Dollars 1997-01-01 196945 2002-01-01 581014 2003-01-01 441258 2004-01-01 1718837 2005-01-01 4688881 2006-01-01 3756987 2007-01-01 3958231 2008-01-01 2918519 2010-01-01 3318199 2011-01-01 5160836 2012-01-01 4743654 2013-01-01 6923347 2014-01-01 11305861 2015-01-01 6506723 2016-01-01 4684523