Year Dollars 1992-01-01 42075 1997-01-01 89971 2002-01-01 160821 2003-01-01 155781 2004-01-01 396914 2005-01-01 174851 2007-01-01 2511443 2009-01-01 290607 2010-01-01 357618 2011-01-01 238264