Quarter	US dollars
1999-09-30	3
1999-12-31	6
2000-03-31	14
2000-06-30	17
2000-09-30	13
2000-12-31	9
2001-03-31	16
2001-06-30	13
2001-09-30	16
2001-12-31	20
2002-03-31	19
2002-06-30	20
2002-09-30	24
2002-12-31	13
2003-03-31	16
2003-06-30	15
2003-09-30	22
2003-12-31	18
2004-03-31	17
2004-06-30	22
2004-09-30	22