Quarter	US dollars
1999-09-30	520
1999-12-31	555
2000-03-31	579
2000-06-30	615
2000-09-30	668
2000-12-31	698
2001-03-31	664
2001-06-30	675
2001-09-30	725
2001-12-31	630
2002-03-31	816
2002-06-30	850
2002-09-30	977
2002-12-31	1115
2003-03-31	1200
2003-06-30	1553
2003-09-30	1565
2003-12-31	1706
2004-03-31	1685
2004-06-30	1743
2004-09-30	2068