Quarter	US dollars
1999-09-30	5170
1999-12-31	5393
2000-03-31	5551
2000-06-30	5074
2000-09-30	4518
2000-12-31	4805
2001-03-31	5235
2001-06-30	5437
2001-09-30	5781
2001-12-31	5629
2002-03-31	5863
2002-06-30	6269
2002-09-30	6293
2002-12-31	6525
2003-03-31	6025
2003-06-30	5876
2003-09-30	5489
2003-12-31	4559
2004-03-31	4472
2004-06-30	4092
2004-09-30	4185