Quarter	US dollars
1999-09-30	431
1999-12-31	403
2000-03-31	577
2000-06-30	616
2000-09-30	571
2000-12-31	631
2001-03-31	436
2001-06-30	556
2001-09-30	431
2001-12-31	591
2002-03-31	524
2002-06-30	587
2002-09-30	637
2002-12-31	518
2003-03-31	403
2003-06-30	541
2003-09-30	648
2003-12-31	541
2004-03-31	546
2004-06-30	528
2004-09-30	565