Quarter US dollars 1999-09-30 2 1999-12-31 2 2000-03-31 22 2000-06-30 23 2000-09-30 22 2000-12-31 22 2001-03-31 23 2001-06-30 23 2001-09-30 22 2001-12-31 22 2002-03-31 31 2002-06-30 32 2002-09-30 31 2002-12-31 32 2003-03-31 32 2003-06-30 31 2003-09-30 32 2003-12-31 32 2004-03-31 31 2004-06-30 33 2004-09-30 33