Quarter	US dollars
1999-09-30	3486
1999-12-31	3418
2000-03-31	3733
2000-06-30	4108
2000-09-30	4682
2000-12-31	4682
2001-03-31	5266
2001-06-30	5569
2001-09-30	5571
2001-12-31	5766
2002-03-31	5652
2002-06-30	5771
2002-09-30	5922
2002-12-31	6253
2003-03-31	6175
2003-06-30	6384
2003-09-30	6915
2003-12-31	7148
2004-03-31	7451
2004-06-30	8260
2004-09-30	8039