Quarter	US dollars
1999-09-30	1000
1999-12-31	650
2000-03-31	624
2000-06-30	706
2000-09-30	497
2000-12-31	746
2001-03-31	997
2001-06-30	966
2001-09-30	1000
2001-12-31	575
2002-03-31	578
2002-06-30	652
2002-09-30	618
2002-12-31	573
2003-03-31	504
2003-06-30	620
2003-09-30	610
2003-12-31	641
2004-03-31	630
2004-06-30	570
2004-09-30	597