Quarter	US dollars
1999-09-30	608
1999-12-31	656
2000-03-31	643
2000-06-30	613
2000-09-30	646
2000-12-31	704
2001-03-31	552
2001-06-30	668
2001-09-30	632
2001-12-31	574
2002-03-31	456
2002-06-30	827
2002-09-30	701
2002-12-31	642
2003-03-31	512
2003-06-30	629
2003-09-30	492
2003-12-31	449
2004-03-31	564
2004-06-30	366
2004-09-30	498