Quarter	US dollars
1999-09-30	15460
1999-12-31	17511
2000-03-31	18836
2000-06-30	18634
2000-09-30	20395
2000-12-31	18948
2001-03-31	18194
2001-06-30	21597
2001-09-30	18543
2001-12-31	16997
2002-03-31	19806
2002-06-30	15555
2002-09-30	17893
2002-12-31	18389
2003-03-31	20024
2003-06-30	19104
2003-09-30	19209
2003-12-31	22614
2004-03-31	25210
2004-06-30	23246
2004-09-30	22858