Quarter	US dollars
1999-09-30	3524
1999-12-31	4445
2000-03-31	4749
2000-06-30	5087
2000-09-30	5232
2000-12-31	5256
2001-03-31	5694
2001-06-30	6430
2001-09-30	6396
2001-12-31	6259
2002-03-31	5453
2002-06-30	4025
2002-09-30	5046
2002-12-31	4883
2003-03-31	4854
2003-06-30	4442
2003-09-30	6059
2003-12-31	5169
2004-03-31	5604
2004-06-30	4946
2004-09-30	6127