Year Dollars 1992-01-01 1615976 1997-01-01 442325 2002-01-01 618305 2003-01-01 1029034 2004-01-01 1662611 2005-01-01 2528455 2006-01-01 3573894 2007-01-01 2499909 2008-01-01 3232559 2009-01-01 2342954 2010-01-01 3282620 2011-01-01 2814810 2012-01-01 3656791 2013-01-01 3579100 2014-01-01 2057011 2015-01-01 1990190 2016-01-01 3014028