Quarter	US dollars
1999-09-30	6315
1999-12-31	6162
2000-03-31	5601
2000-06-30	5343
2000-09-30	4700
2000-12-31	5247
2001-03-31	4783
2001-06-30	4719
2001-09-30	4178
2001-12-31	3013
2002-03-31	2442
2002-06-30	2052
2002-09-30	1867
2002-12-31	1714
2003-03-31	1366
2003-06-30	1360
2003-09-30	2024
2003-12-31	1470
2004-03-31	1369
2004-06-30	1436
2004-09-30	1931