Quarter	US dollars
1999-09-30	1661
1999-12-31	1691
2000-03-31	1582
2000-06-30	1956
2000-09-30	2040
2000-12-31	2491
2001-03-31	2673
2001-06-30	2913
2001-09-30	2712
2001-12-31	3261
2002-03-31	2723
2002-06-30	3312
2002-09-30	3111
2002-12-31	3250
2003-03-31	3257
2003-06-30	3515
2003-09-30	3775
2003-12-31	3816
2004-03-31	4010
2004-06-30	3201
2004-09-30	3403