Quarter	US dollars
1999-09-30	4420
1999-12-31	4333
2000-03-31	4550
2000-06-30	4286
2000-09-30	4555
2000-12-31	4280
2001-03-31	4163
2001-06-30	3879
2001-09-30	3935
2001-12-31	4020
2002-03-31	3821
2002-06-30	3651
2002-09-30	3884
2002-12-31	4299
2003-03-31	4422
2003-06-30	4782
2003-09-30	4765
2003-12-31	4453
2004-03-31	4714
2004-06-30	3921
2004-09-30	4431