Year Dollars 1997-01-01 972563 2002-01-01 2382451 2003-01-01 12048836 2004-01-01 1699484 2005-01-01 352895 2007-01-01 574062 2008-01-01 1380600 2011-01-01 289456 2012-01-01 12991566 2013-01-01 3269875 2014-01-01 3384020 2015-01-01 1129887