Quarter	US dollars
1999-09-30	1342
1999-12-31	1877
2000-03-31	2039
2000-06-30	1955
2000-09-30	1941
2000-12-31	1649
2001-03-31	1749
2001-06-30	1834
2001-09-30	1964
2001-12-31	1853
2002-03-31	1937
2002-06-30	2162
2002-09-30	1687
2002-12-31	1824
2003-03-31	1555
2003-06-30	2074
2003-09-30	2092
2003-12-31	2170
2004-03-31	2290
2004-06-30	2470
2004-09-30	2537