Quarter	US dollars
1999-09-30	1495
1999-12-31	1549
2000-03-31	1839
2000-06-30	1691
2000-09-30	2089
2000-12-31	2232
2001-03-31	2283
2001-06-30	2446
2001-09-30	2530
2001-12-31	2582
2002-03-31	2696
2002-06-30	2589
2002-09-30	2634
2002-12-31	2609
2003-03-31	2826
2003-06-30	3078
2003-09-30	3153
2003-12-31	3203
2004-03-31	3630
2004-06-30	3390
2004-09-30	3413