Quarter	US dollars
1999-09-30	1520
1999-12-31	1111
2000-03-31	1937
2000-06-30	2123
2000-09-30	1987
2000-12-31	2015
2001-03-31	1696
2001-06-30	1708
2001-09-30	1768
2001-12-31	1761
2002-03-31	1974
2002-06-30	2151
2002-09-30	2238
2002-12-31	2323
2003-03-31	2805
2003-06-30	3290
2003-09-30	3108
2003-12-31	3479
2004-03-31	3869
2004-06-30	4337
2004-09-30	4652