Quarter	US dollars
1999-09-30	591
1999-12-31	419
2000-03-31	455
2000-06-30	466
2000-09-30	469
2000-12-31	522
2001-03-31	488
2001-06-30	481
2001-09-30	479
2001-12-31	377
2002-03-31	369
2002-06-30	415
2002-09-30	370
2002-12-31	422
2003-03-31	382
2003-06-30	449
2003-09-30	364
2003-12-31	292
2004-03-31	283
2004-06-30	301
2004-09-30	252