Year Dollars 1992-01-01 1921111 1997-01-01 2196487 2002-01-01 3494807 2003-01-01 7381144 2004-01-01 1689568 2005-01-01 2288888 2006-01-01 4325200 2007-01-01 5976218 2008-01-01 3387821 2009-01-01 2648647 2010-01-01 6875980 2011-01-01 9364713 2012-01-01 7888908 2013-01-01 7823095 2014-01-01 6260702 2015-01-01 3767622 2016-01-01 5068280