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	30
2001-03-31	28
2001-06-30	23
2001-09-30	22
2001-12-31	17
2002-03-31	17
2002-06-30	15
2002-09-30	30
2002-12-31	13
2003-03-31	14
2003-06-30	13
2003-09-30	20
2003-12-31	20
2004-03-31	28
2004-06-30	24
2004-09-30	16