Quarter	US dollars
1999-03-31	8
1999-06-30	28
1999-09-30	56
1999-12-31	35
2000-03-31	43
2000-06-30	24
2000-09-30	51
2000-12-31	53
2001-03-31	36
2001-06-30	42
2001-09-30	43
2001-12-31	42
2002-03-31	19
2002-06-30	22
2002-09-30	26
2002-12-31	28
2003-03-31	33
2003-06-30	42
2003-09-30	33
2003-12-31	-4
2004-03-31	15