Quarter	US dollars
1999-09-30	1920
1999-12-31	2041
2000-03-31	2468
2000-06-30	2734
2000-09-30	3032
2000-12-31	2829
2001-03-31	3112
2001-06-30	3128
2001-09-30	3362
2001-12-31	3840
2002-03-31	3925
2002-06-30	4565
2002-09-30	4600
2002-12-31	5088
2003-03-31	5268
2003-06-30	5375
2003-09-30	6159
2003-12-31	6494
2004-03-31	8721
2004-06-30	7246
2004-09-30	6550