Year Dollars 1992-01-01 110451 1997-01-01 131182 2002-01-01 287875 2003-01-01 206544 2004-01-01 532628 2005-01-01 1753538 2006-01-01 412604 2007-01-01 762402 2008-01-01 2561151 2009-01-01 656031 2010-01-01 532478 2011-01-01 224696