Quarter	US dollars
2004-12-31	13
2005-03-31	85
2005-06-30	9
2005-09-30	0
2005-12-31	-2
2006-03-31	0
2006-06-30	-1
2006-09-30	-3
2006-12-31	-18
2007-03-31	0
2007-06-30	-2
2007-09-30	2
2007-12-31	0
2008-03-31	2
2008-06-30	4
2008-09-30	9
2008-12-31	14
2009-03-31	11
2009-06-30	12
2009-09-30	5
2009-12-31	-32
2010-03-31	-23
2010-06-30	236
2010-09-30	-16
2010-12-31	-13
2011-03-31	-6
2011-06-30	-3
2011-09-30	137
2011-12-31	2
2012-03-31	0
2012-06-30	78
2012-09-30	79
2012-12-31	94
2013-03-31	65
2013-06-30	5
2013-09-30	40
2013-12-31	228
2014-03-31	412
2014-06-30	409
2014-09-30	130
2014-12-31	117
2015-03-31	163
2015-06-30	93
2015-09-30	70
2015-12-31	68
2016-03-31	137
2016-06-30	128
2016-09-30	261
2016-12-31	103
2017-03-31	243
2017-06-30	75
2017-09-30	20
2017-12-31	20
2018-03-31	10
2018-06-30	1
2018-09-30	1
2018-12-31	1
2019-03-31	1
2019-06-30	34
2019-09-30	1