Quarter	US dollars
1999-09-30	5603
1999-12-31	6839
2000-03-31	7365
2000-06-30	7130
2000-09-30	8261
2000-12-31	7260
2001-03-31	6487
2001-06-30	7016
2001-09-30	6822
2001-12-31	6402
2002-03-31	5940
2002-06-30	5386
2002-09-30	5930
2002-12-31	6354
2003-03-31	6690
2003-06-30	6982
2003-09-30	6940
2003-12-31	6816
2004-03-31	7102
2004-06-30	7142
2004-09-30	7746