Quarter	US dollars
1999-09-30	3573
1999-12-31	3429
2000-03-31	3699
2000-06-30	2901
2000-09-30	4603
2000-12-31	3748
2001-03-31	3768
2001-06-30	3434
2001-09-30	3197
2001-12-31	3151
2002-03-31	3159
2002-06-30	3241
2002-09-30	3672
2002-12-31	3552
2003-03-31	3103
2003-06-30	3513
2003-09-30	3647
2003-12-31	4000
2004-03-31	4099
2004-06-30	4482
2004-09-30	4596