Quarter	US dollars
1999-09-30	1930
1999-12-31	1780
2000-03-31	1892
2000-06-30	1903
2000-09-30	1900
2000-12-31	2553
2001-03-31	2204
2001-06-30	2047
2001-09-30	1892
2001-12-31	2042
2002-03-31	2427
2002-06-30	2257
2002-12-31	2651
2003-03-31	2590
2003-06-30	2728
2003-09-30	3113
2003-12-31	3667
2004-03-31	3975
2004-06-30	4204
2004-09-30	4598