Quarter	US dollars
1999-09-30	1077
1999-12-31	1024
2000-03-31	1125
2000-06-30	1137
2000-09-30	1248
2000-12-31	1419
2001-03-31	1521
2001-06-30	1542
2001-09-30	1301
2001-12-31	1441
2002-03-31	1534
2002-06-30	1463
2002-12-31	1309
2003-03-31	1155
2003-06-30	1158
2003-09-30	1211
2003-12-31	931
2004-03-31	976
2004-06-30	1012
2004-09-30	1004