Quarter	US dollars
1999-09-30	10
1999-12-31	10
2000-03-31	10
2000-06-30	20
2000-09-30	21
2000-12-31	21
2001-03-31	21
2001-06-30	17
2001-09-30	16
2001-12-31	12
2002-03-31	11
2002-06-30	11
2002-09-30	9
2002-12-31	8
2003-03-31	9
2003-06-30	13
2003-09-30	15
2003-12-31	14
2004-03-31	22
2004-06-30	16
2004-09-30	16