Quarter	US dollars
2004-12-31	21
2005-03-31	30
2005-06-30	22
2005-09-30	19
2005-12-31	34
2006-03-31	47
2006-06-30	11
2006-09-30	39
2006-12-31	23
2007-03-31	2
2007-06-30	4
2007-09-30	16
2007-12-31	22
2008-03-31	34
2008-06-30	30
2008-09-30	32
2008-12-31	22
2009-03-31	16
2009-06-30	12
2009-09-30	11
2009-12-31	3
2010-03-31	9
2010-06-30	6
2010-09-30	8
2010-12-31	27
2011-03-31	32
2011-06-30	19
2011-09-30	20
2011-12-31	88
2012-03-31	89
2012-06-30	74
2012-09-30	15
2012-12-31	21
2013-03-31	24
2013-06-30	8
2013-09-30	10
2013-12-31	17
2014-03-31	25
2014-06-30	27
2014-09-30	24
2014-12-31	28
2015-03-31	15
2015-06-30	17
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