Quarter	US dollars
1999-09-30	3395
1999-12-31	2889
2000-03-31	3005
2000-06-30	3405
2000-09-30	3379
2000-12-31	3883
2001-03-31	3401
2001-06-30	3861
2001-09-30	3901
2001-12-31	4659
2002-03-31	5581
2002-06-30	5792
2002-09-30	3806
2002-12-31	4598
2003-03-31	3177
2003-06-30	3724
2003-09-30	3034
2003-12-31	2437
2004-03-31	2669
2004-06-30	4725
2004-09-30	5320