Quarter	US dollars
1999-09-30	509
1999-12-31	538
2000-03-31	530
2000-06-30	578
2000-09-30	597
2000-12-31	597
2001-03-31	640
2001-06-30	623
2001-09-30	636
2001-12-31	616
2002-03-31	595
2002-06-30	630
2002-09-30	664
2002-12-31	639
2003-03-31	683
2003-06-30	657
2003-09-30	701
2003-12-31	698
2004-03-31	766
2004-06-30	867
2004-09-30	812