Quarter	US dollars
2004-12-31	29
2005-09-30	0
2005-12-31	0
2006-03-31	0
2006-06-30	2
2008-03-31	4
2008-06-30	8
2008-09-30	4
2008-12-31	1
2009-03-31	3
2009-09-30	10
2010-03-31	3
2010-06-30	1
2010-09-30	2
2010-12-31	22
2011-03-31	2