Year Dollars 1992-01-01 461766 1997-01-01 359897 2002-01-01 320408 2003-01-01 319911 2004-01-01 699562 2005-01-01 1425636 2006-01-01 1795346 2007-01-01 725889 2008-01-01 1070422 2009-01-01 1201092 2010-01-01 2178166 2011-01-01 443753