Quarter	US dollars
1999-09-30	13919
1999-12-31	14204
2000-03-31	14020
2000-06-30	13863
2000-09-30	12812
2000-12-31	13449
2001-03-31	11991
2001-06-30	12816
2001-09-30	12249
2001-12-31	16269
2002-03-31	17842
2002-06-30	20633
2002-09-30	20621
2002-12-31	22088
2003-03-31	24163
2003-06-30	28573
2003-09-30	30161
2003-12-31	35941
2004-03-31	35367
2004-06-30	35558
2004-09-30	36964