Quarter	US dollars
1999-09-30	1324
1999-12-31	1254
2000-03-31	1399
2000-06-30	1417
2000-09-30	1459
2000-12-31	1549
2001-03-31	1507
2001-06-30	1602
2001-09-30	1592
2001-12-31	1409
2002-03-31	1387
2002-06-30	1283
2002-09-30	1200
2002-12-31	1104
2003-03-31	988
2003-06-30	1002
2003-09-30	1057
2003-12-31	951
2004-03-31	1013
2004-06-30	1025
2004-09-30	1046