Quarter	US dollars
2004-12-31	52
2005-03-31	32
2005-06-30	32
2005-09-30	62
2005-12-31	58
2006-03-31	59
2006-06-30	63
2006-09-30	58
2006-12-31	80
2007-03-31	92
2007-06-30	102
2007-09-30	79
2007-12-31	92
2008-03-31	93
2008-06-30	100
2008-09-30	102
2008-12-31	88
2009-03-31	102
2009-06-30	68
2009-09-30	82
2009-12-31	92
2010-03-31	77
2010-06-30	67
2010-09-30	3
2010-12-31	0
2011-03-31	0
2011-06-30	0
2011-09-30	0
2011-12-31	2
2012-03-31	2
2012-06-30	2
2012-09-30	2
2012-12-31	0
2013-03-31	2
2013-06-30	112
2013-09-30	63
2013-12-31	0
2014-03-31	11
2014-06-30	0
2014-09-30	0
2014-12-31	6
2015-03-31	0
2015-06-30	0
2015-09-30	0
2015-12-31	0
2016-03-31	0
2016-06-30	0
2016-09-30	0
2016-12-31	0
2017-03-31	0
2017-06-30	0
2017-09-30	0
2017-12-31	0
2018-03-31	0
2018-06-30	0
2018-09-30	0
2018-12-31	0
2019-03-31	0
2019-06-30	0
2019-09-30	0