Quarter	US dollars
1999-09-30	3367
1999-12-31	3452
2000-03-31	3388
2000-06-30	3304
2000-09-30	3152
2000-12-31	3060
2001-03-31	2949
2001-06-30	3135
2001-09-30	3218
2001-12-31	3226
2002-03-31	3612
2002-06-30	3831
2002-09-30	3854
2002-12-31	3679
2003-03-31	3890
2003-06-30	3917
2003-09-30	4230
2003-12-31	4406
2004-03-31	4150
2004-06-30	4779
2004-09-30	5347