Year Dollars 1997-01-01 13769 2002-01-01 1250091 2003-01-01 2278476 2004-01-01 4441341 2005-01-01 3245619 2006-01-01 3091505 2007-01-01 1720570 2008-01-01 3083366 2009-01-01 839949 2010-01-01 83043 2012-01-01 534636