Quarter US dollars 1999-09-30 0 1999-12-31 0 2000-03-31 115 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 22075 2003-06-30 24277 2003-09-30 25069 2003-12-31 30625 2004-03-31 30597 2004-06-30 32940 2004-09-30 36092