Quarter	US dollars
1999-09-30	11355
1999-12-31	12586
2000-03-31	15191
2000-06-30	15333
2000-09-30	15054
2000-12-31	17877
2001-03-31	16072
2001-06-30	16760
2001-09-30	16668
2001-12-31	17927
2002-03-31	18602
2002-06-30	20986
2002-09-30	20385
2002-12-31	20745
2003-03-31	21821
2003-06-30	20888
2003-09-30	19091
2003-12-31	18260
2004-03-31	20287
2004-06-30	18572
2004-09-30	20710