Quarter	US dollars
1999-09-30	1670
1999-12-31	1594
2000-03-31	1570
2000-06-30	1944
2000-09-30	1636
2000-12-31	1736
2001-03-31	1722
2001-06-30	1646
2001-09-30	1527
2001-12-31	1667
2002-03-31	1517
2002-06-30	1959
2002-09-30	1841
2002-12-31	1923
2003-03-31	1980
2003-06-30	1916
2003-09-30	1902
2003-12-31	2236
2004-03-31	2171
2004-06-30	2187
2004-09-30	2236