Quarter	US dollars
1999-09-30	1133
1999-12-31	982
2000-03-31	852
2000-06-30	1311
2000-09-30	1580
2000-12-31	1879
2001-03-31	1668
2001-06-30	2099
2001-09-30	2303
2001-12-31	2253
2002-03-31	2845
2002-06-30	2794
2002-09-30	3022
2002-12-31	3007
2003-03-31	2973
2003-06-30	3010
2003-09-30	3529
2003-12-31	3948
2004-03-31	4003
2004-06-30	4489
2004-09-30	4243