Quarter	US dollars
1999-09-30	5141
1999-12-31	5302
2000-03-31	5371
2000-06-30	5210
2000-09-30	5483
2000-12-31	6167
2001-03-31	6746
2001-06-30	6199
2001-09-30	5944
2001-12-31	5229
2002-03-31	4782
2002-06-30	4651
2002-09-30	4628
2002-12-31	5485
2003-03-31	4588
2003-06-30	4361
2003-09-30	4875
2003-12-31	3832
2004-03-31	3759
2004-06-30	3912
2004-09-30	4362