Quarter	US dollars
1999-09-30	1279
1999-12-31	1730
2000-03-31	2436
2000-06-30	2688
2000-09-30	2633
2000-12-31	2900
2001-03-31	3318
2001-06-30	3801
2001-09-30	3700
2001-12-31	3753
2002-03-31	3827
2002-06-30	4483
2002-09-30	4663
2002-12-31	4666
2003-03-31	4623
2003-06-30	5127
2003-09-30	4999
2003-12-31	5246
2004-03-31	5986
2004-06-30	5764
2004-09-30	5644