Quarter	US dollars
1999-09-30	22141
1999-12-31	20619
2000-03-31	21030
2000-06-30	20776
2000-09-30	20188
2000-12-31	21014
2001-03-31	19905
2001-06-30	18483
2001-09-30	18174
2001-12-31	16780
2002-03-31	16707
2002-06-30	18909
2002-09-30	18129
2002-12-31	17661
2003-03-31	19134
2003-06-30	17553
2003-09-30	18594
2003-12-31	19441
2004-03-31	20652
2004-06-30	20531
2004-09-30	22769