Quarter	US dollars
1999-09-30	30262
1999-12-31	30137
2000-03-31	30948
2000-06-30	32252
2000-09-30	31126
2000-12-31	33811
2001-03-31	34324
2001-06-30	34033
2001-09-30	34323
2001-12-31	35469
2002-03-31	32227
2002-06-30	33470
2002-09-30	33886
2002-12-31	34693
2003-03-31	35036
2003-06-30	35982
2003-09-30	38918
2003-12-31	40689
2004-03-31	43121
2004-06-30	44989
2004-09-30	49015