Quarter	US dollars
1999-09-30	23157
1999-12-31	25246
2000-03-31	27173
2000-06-30	27611
2000-09-30	31418
2000-12-31	31307
2001-03-31	31060
2001-06-30	30661
2001-09-30	31880
2001-12-31	33176
2002-03-31	35494
2002-06-30	36894
2002-09-30	38632
2002-12-31	39421
2003-03-31	41236
2003-06-30	42988
2003-09-30	46315
2003-12-31	48363
2004-03-31	53564
2004-06-30	50943
2004-09-30	51195