Quarter	US dollars
1999-09-30	1240
1999-12-31	1298
2000-03-31	1139
2000-06-30	1223
2000-09-30	1282
2000-12-31	1271
2001-03-31	1224
2001-06-30	1300
2001-09-30	1360
2001-12-31	1520
2002-03-31	1350
2002-06-30	1491
2002-09-30	1590
2002-12-31	1788
2003-03-31	1800
2003-06-30	2125
2003-09-30	2422
2003-12-31	2940
2004-03-31	3038
2004-06-30	3234
2004-09-30	3253