Quarter	US dollars
1999-09-30	3792
1999-12-31	4127
2000-03-31	4782
2000-06-30	4137
2000-09-30	4019
2000-12-31	4338
2001-03-31	4048
2001-06-30	3913
2001-09-30	4679
2001-12-31	5508
2002-03-31	6317
2002-06-30	6076
2002-09-30	8262
2002-12-31	9382
2003-03-31	10561
2003-06-30	9752
2003-09-30	11557
2003-12-31	13733
2004-03-31	15865
2004-06-30	15966
2004-09-30	16715