Quarter	US dollars
1999-09-30	430
1999-12-31	488
2000-03-31	429
2000-06-30	395
2000-09-30	383
2000-12-31	471
2001-03-31	384
2001-06-30	369
2001-09-30	337
2001-12-31	342
2002-03-31	306
2002-06-30	334
2002-09-30	296
2002-12-31	286
2003-03-31	253
2003-06-30	252
2003-09-30	186
2003-12-31	159
2004-03-31	173
2004-06-30	156
2004-09-30	150