Quarter	US dollars
1999-09-30	2338
1999-12-31	2907
2000-03-31	2627
2000-06-30	3361
2000-09-30	2602
2000-12-31	3633
2001-03-31	3151
2001-06-30	2810
2001-09-30	2422
2001-12-31	2918
2002-03-31	2874
2002-06-30	2757
2002-09-30	2956
2002-12-31	3361
2003-03-31	3570
2003-06-30	3741
2003-09-30	4296
2003-12-31	4392
2004-03-31	4881
2004-06-30	5234
2004-09-30	5032