Quarter	US dollars
1999-09-30	17448
1999-12-31	15422
2000-03-31	18318
2000-06-30	16707
2000-09-30	16122
2000-12-31	17224
2001-03-31	18772
2001-06-30	18140
2001-09-30	15812
2001-12-31	19033
2002-03-31	22024
2002-06-30	23650
2002-09-30	27658
2002-12-31	26945
2003-03-31	28374
2003-06-30	30571
2003-09-30	27172
2003-12-31	23069
2004-03-31	21886
2004-06-30	17259
2004-09-30	18507