Quarter	US dollars
1999-09-30	10
1999-12-31	13
2000-03-31	21
2000-06-30	21
2000-09-30	21
2000-12-31	16
2001-03-31	18
2001-06-30	18
2001-09-30	21
2001-12-31	22
2002-03-31	23
2002-06-30	24
2002-09-30	28
2002-12-31	18
2003-03-31	21
2003-06-30	20
2003-09-30	28
2003-12-31	29
2004-03-31	28
2004-06-30	33
2004-09-30	33