Quarter	US dollars
1999-09-30	3274
1999-12-31	3534
2000-03-31	3441
2000-06-30	3793
2000-09-30	3545
2000-12-31	4185
2001-03-31	4168
2001-06-30	4337
2001-09-30	4229
2001-12-31	4955
2002-03-31	4094
2002-06-30	4519
2002-09-30	4516
2002-12-31	5439
2003-03-31	5593
2003-06-30	6447
2003-09-30	6676
2003-12-31	7570
2004-03-31	8054
2004-06-30	7694
2004-09-30	8307