Quarter US dollars 1999-09-30 0 1999-12-31 0 2000-03-31 0 2000-06-30 0 2000-09-30 0 2000-12-31 0 2001-03-31 0 2001-06-30 0 2001-09-30 0 2001-12-31 0 2002-03-31 0 2002-06-30 0 2002-09-30 0 2002-12-31 0 2003-03-31 0 2003-06-30 0 2003-09-30 0 2003-12-31 0 2004-03-31 0