Quarter	US dollars
1999-09-30	23300
1999-12-31	22183
2000-03-31	22823
2000-06-30	21502
2000-09-30	18640
2000-12-31	28297
2001-03-31	27081
2001-06-30	27972
2001-09-30	28370
2001-12-31	26565
2002-03-31	24015
2002-06-30	22418
2002-09-30	23159
2002-12-31	25376
2003-03-31	28559
2003-06-30	30950
2003-09-30	31821
2003-12-31	23013
2004-03-31	29213
2004-06-30	25488
2004-09-30	24246