Quarter	US dollars
1999-09-30	8600
1999-12-31	7904
2000-03-31	6631
2000-06-30	6165
2000-09-30	6658
2000-12-31	7327
2001-03-31	6909
2001-06-30	7158
2001-09-30	7870
2001-12-31	8077
2002-03-31	8039
2002-06-30	9983
2002-09-30	11796
2002-12-31	14244
2003-03-31	14026
2003-06-30	16066
2003-09-30	15868
2003-12-31	24804
2004-03-31	24771
2004-06-30	25064
2004-09-30	28337