Quarter	US dollars
1999-09-30	1293
1999-12-31	1193
2000-03-31	1514
2000-06-30	1500
2000-09-30	1431
2000-12-31	1601
2001-03-31	1729
2001-06-30	1793
2001-09-30	2273
2001-12-31	1940
2002-03-31	1801
2002-06-30	2200
2002-09-30	2524
2002-12-31	3720
2003-03-31	4198
2003-06-30	5139
2003-09-30	4007
2003-12-31	4389
2004-03-31	5857
2004-06-30	4279
2004-09-30	4648