Quarter US dollars 1999-09-30 11349 1999-12-31 11611 2000-03-31 12181 2000-06-30 12154 2000-09-30 13235 2000-12-31 14790 2001-03-31 13756 2001-06-30 14931 2001-09-30 15180 2001-12-31 15224 2002-03-31 16400 2002-06-30 16955 2002-09-30 16806 2002-12-31 16746 2003-03-31 17196 2003-06-30 17243 2003-09-30 18594 2003-12-31 18906 2004-03-31 19031 2004-06-30 22432 2004-09-30 23470