Quarter	US dollars
1999-09-30	501
1999-12-31	532
2000-03-31	603
2000-06-30	625
2000-09-30	543
2000-12-31	450
2001-03-31	820
2001-06-30	568
2001-09-30	557
2001-12-31	456
2002-03-31	513
2002-06-30	372
2002-09-30	341
2002-12-31	418
2003-03-31	533
2003-06-30	662
2003-09-30	596
2003-12-31	578
2004-03-31	360
2004-06-30	550
2004-09-30	369