Quarter	US dollars
1999-09-30	2598
1999-12-31	2679
2000-03-31	2824
2000-06-30	2919
2000-09-30	2693
2000-12-31	2996
2001-03-31	3169
2001-06-30	3068
2001-09-30	2943
2001-12-31	3357
2002-03-31	3396
2002-06-30	3718
2002-09-30	3815
2002-12-31	4178
2003-03-31	4517
2003-06-30	4571
2003-09-30	5049
2003-12-31	5606
2004-03-31	5988
2004-06-30	6246
2004-09-30	6566