Quarter	US dollars
1999-09-30	1647
1999-12-31	1490
2000-03-31	1479
2000-06-30	1490
2000-09-30	1481
2000-12-31	1570
2001-03-31	1487
2001-06-30	1623
2001-09-30	1442
2001-12-31	1402
2002-03-31	1226
2002-06-30	1587
2002-09-30	1486
2002-12-31	1338
2003-03-31	1324
2003-06-30	1550
2003-09-30	1404
2003-12-31	1422
2004-03-31	1599
2004-06-30	1348
2004-09-30	1453