Quarter US dollars 1999-09-30 2831 1999-12-31 2794 2000-03-31 2870 2000-06-30 2915 2000-09-30 3091 2000-12-31 3643 2001-03-31 3411 2001-06-30 3327 2001-09-30 3191 2001-12-31 3365 2002-03-31 3788 2002-06-30 4355 2002-09-30 4339 2002-12-31 4400 2003-03-31 4879 2003-06-30 5188 2003-09-30 5660 2003-12-31 6170 2004-03-31 6436 2004-06-30 6538 2004-09-30 7218