Quarter US dollars 1999-09-30 0 1999-12-31 15 2000-03-31 14 2000-06-30 15 2000-09-30 15 2000-12-31 15 2001-03-31 16 2001-06-30 15 2001-09-30 15 2001-12-31 15 2002-03-31 16 2002-06-30 15 2002-09-30 16 2002-12-31 14 2003-03-31 14 2003-06-30 15 2003-09-30 15 2003-12-31 14 2004-03-31 15 2004-06-30 15 2004-09-30 18