Year Dollars 1992-01-01 1059784 1997-01-01 1867704 2002-01-01 1815415 2003-01-01 1749793 2004-01-01 3157799 2005-01-01 4289976 2006-01-01 4620044 2007-01-01 5964458 2008-01-01 6908840 2009-01-01 4834710 2010-01-01 4563037 2011-01-01 1894849