Quarter	US dollars
1999-09-30	510
1999-12-31	450
2000-03-31	370
2000-06-30	447
2000-09-30	415
2000-12-31	365
2001-03-31	432
2001-06-30	547
2001-09-30	462
2001-12-31	536
2002-03-31	510
2002-06-30	520
2002-09-30	525
2002-12-31	515
2003-03-31	490
2003-06-30	563
2003-09-30	633
2003-12-31	562
2004-03-31	570
2004-06-30	579
2004-09-30	644